PowerMac to MacPro - software functionality / upgrades?

Question

About to upgrade to a MacPro - currently have a PowerMac dual G5 2.0Ghz with 3.5GB RAM...
Question 1: will I need to re-install all my software, or is there some neat way to transfer the apps ?
Question 2: Having just received my Final Cut Studio 2 upgrade, can I simply install this direct onto my ne MacPro, or will I need to install the original FCS then add FCS2 upgrade..?
Question 3: for FCS apps, what's the ideal machine configuration? I'm considering Quad 2.66GHz with 4GB RAM, or perhaps 8GB as Motion may prefer more memory if available.. ..or would an 8 core MacPro with 8GB give significantly better performance? I'll opt for the ATI X1900XT graphics card.
Many thanks.
Rgds, Ross.
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Answer 1

All your current applications that are not Universal Binaries should be reinstalled. Any applications that are PPC-only but available in Universal Binaries should be upgraded.
Usually upgrade-only software cannot be installed unless a prior version of the software is already installed. Hopefully, you have the universal binary versions to use on the Mac Pro.
You can transfer your files using this guide:
<font "size=+1">Folders You Can Move to Your new Mac
From the Home folder copy the contents of Documents, Movies, Music, Pictures, and Sites.
In your /Home/Library/ folder:
/Home/Library/Application Support/AddressBook (copy the whole folder)
/Home/Library/Application Support/iCal (copy the whole folder)
Also in /Home/Library/Application Support (copy whatever else you need including folders for any third-party applications)
/Home/Library/Keychains (copy the whole folder)
/Home/Library/Mail (copy the whole folder)
/Home/Library/Preferences/com.apple.mail.plist (* This is a very important file which contains all email account settings and general mail preferences.)
/Home/Library/Preferences/ copy any preferences needed for third-party applications
/Home /Library/iTunes (copy the whole folder)
/Home /Library/Safari (copy the whole folder)
If you want cookies:
/Home/Library/Cookies/Cookies.plist
/Home/Library/Application Support/WebFoundation/HTTPCookies.plist
For Entourage users:
Entourage is in /Home/Documents/Microsoft User Data
Also in /Home/Library/Preferences/Microsoft
Credit goes to another forum user for this information.
It would be wise not to use Migration Assistant when moving from a PPC Mac to an Intel Mac.
There is no such thing as an 'ideal' configuration. Get whatever you feel best suits your needs over the next few years constrained by your budget. Everything else is pretty obvious - faster is better, more RAM is better.