I'm scared. Can you help? I can't jump from here to there.

Question

Dear Apple MobileMe
I am very eager to make the move from MobileMe to iCloud, but...
As you can see from your own email, this is far from simple 
My wife and I totally depend on my Macbook Pro (1), my old Powerbook that my wife uses (2), our iPhones (3 & 4), our iPad (5), my Time Machine, and my MobileMe (6), including Backups to our iDisk on MobileMe to keep our lives running.
iCal's synced across 6 Apple platforms
Address Books synced across 6 Apple platforms
Email synced across 6 Apple platforms (me using Mail and wife using AOL)
Bookmarks synced across 6 Apple platforms
Various apple ID's synced across 6 Apple platforms
You get the picture
I would hate to mess this delicately balanced Apple computer ecosystem up at all.
iOS 10.7 requires that I upgrade a bunch of my key work apps and figure out a way to transfer a 10 year dependence on Quicken onto some other equally robust financial management platform that doesn't seem to exist.  Just to add insult to potential injury.
I'm scared.
Wish this whole process could be 500% more automated.
We've been on Macs  and other Apple devices since 1987.  I can't keep track of all of my "Apple ID's" for this and that that you've asked me to set up for each device and for each service over the years.  Everything's registered with you. 
Devices
MobileMe email aliases
iTunes
iDisk
App Store
AppleCare(s)
MobileMe
Apple.com support (here)
Apple ProCare
Apple iDisk Public folder
etc.
etc.
You should be able to gather all of my identities together into one place and figure out the best way to migrate me to the new Apple iCloud Garden of Eden.
You've got to find a way to help us work all this out.  It's more than intimidating.  We're frozen in fear.  We just can't jump from here to there.
Steve
==================================================
On Dec 1, 2011, at 1:57 PM, MobileMe wrote: 
iCloud is here Dear MobileMe member, 
iCloud is here and you can now make the transition from MobileMe. You can move your
MobileMe mail, contacts, calendars, and bookmarks to iCloud, and keep your me.com and
mac.com email addresses. iCloud is a breakthrough set of free cloud services, including iTunes in the Cloud, Photo Stream
and Documents in the Cloud, that works seamlessly with your iPhone, iPad, iPod touch, Mac or
PC to store your content in iCloud and push it to all your devices. When content changes on one
device, all your other devices are updated automatically and wirelessly. 
Making the Move
Before moving to iCloud, make sure that your iOS devices and computers have the required
software and your data is properly backed up by following these steps:
Get iTunes 10.5.
Download iTunes 10.5 to your Mac or PC.
Update your devices to iOS 5.
Update your iPhone, iPad and iPod touch to iOS 5 by connecting each
device to your Mac or PC and following the instructions in iTunes.
When you are asked to provide your Apple ID during iOS setup, use
your MobileMe email address and password.
Update your computers.Mac: Update to OS X Lion v10.7.2PC:   Update to Windows 7 or Windows Vista Service Pack 2 andinstall the iCloud Control Panel for Windows.
Back up your MobileMe data.
For detailed instructions, review this article.
Verify your contacts and bookmarks.
Verify that your contacts and bookmarks are completely up to date on
at least one device you will use with iCloud. They will be uploaded to
iCloud from your devices after you move. iCloud will not copy any
contacts or bookmarks directly from me.com.
When you are ready, go to me.com/move and follow the instructions to move your account to
iCloud. 
Important Notes
If your me.com or mac.com email address is used with more than one Apple ID, you may be
unable to access some iCloud services. If this occurs, you can remove duplicate email
addresses from your other Apple IDs by visiting My Apple ID. You can also use different Apple IDs for iCloud and your Store purchases (including iTunes,
App Store and iBookstore). For more information and detailed instructions, review this article. You can make the move from MobileMe to iCloud anytime between now and June 30, 2012. For
answers to some of the most common questions about the transition, see the MobileMe
transition FAQ. Sincerely, 
Apple 
iCloud requires iOS 5 on iPhone 3GS or later, iPod touch (3rd and 4th generation), iPad, or iPad 2; a Mac computer
with OS X Lion; or a PC with Windows Vista or Windows 7 (Outlook 2007 or 2010 or an up-to-date browser is
required for accessing email, contacts and calendars). Some features require a Wi-Fi connection. Some features
are not available in all countries. Access to some services is limited to 10 devices. Previous purchases may be
unavailable if they are no longer in the iTunes Store, App Store, or iBookstore.
MobileMe is a service provided by Apple • Terms of Service • Privacy Policy
Copyright © 2011 Apple Inc. • 1 Infinite Loop, Cupertino, CA 95014
You are receiving this email from Apple to notify you of service information regarding your MobileMe account.

Answer 1

This is a user-to-user forum: you aren't talking to Apple here.
I do sympathize with your situation: you are among many for whom upgrading is impracticable, but who are dependent on MobileMe facilities which will be withdrawn next June.
As you say, you will need 10.7.2 to access iCloud on a Mac, and iOS5 for mobile devices.
I can't offer you any easy solutions, but this list may at least clarify the exact situation for you:
Your email, calendars, contacts and bookmarks, and 'Find my iPhone' will be migrated to iCloud.
Your iDisk, together with website hosting and Gallery. will continue to work as before until next June.
You will be able to access email, calendar and contacts on the iCloud website at http://icloud.com provided your browser is reasonably up-to-date.
You will not be able to sync contacts or bookmarks from a pre-Lion Mac.
You will be able to enter the server settings for email manually in the Mail application and access your email.
You will not be able to sync your calendars directly.
Some people have been able to set up calendar syncing by using the method detailed here - this is an unsupported hack and may not be reliable, and may stop working at some future point. BusyCal is an iCal-like calendar application with extra facilities: it can sync with the iCloud Calendar while running on Leopard, Snow Leopard or Lion.
There appears to be no method of syncing contacts (though Address Book on a Mac can be synced with Google or Yahoo address books - I don't know how reliable this is).