Computer having problems - need quick consult

Question

We bought an iPod, ripped a couple hundred songs from existing CD collection, and synced with my roommate's Windows box. We then told iTunes to sync with his entire picture library in full resolution. We synced, and so far so good.
Now...the PC is older and totally on the fritz, and we're going to take it in for repair. Meanwhile, we strongly suspect that they'll have to at least wipe the hard drive clean if not install other new hardware. We might even have to trash it and buy something new (probably a Mac).
So I enabled disk mode on the iPod, and now in addition to what's synced with iTunes, I copied all of his original digital music files (stuff he downloaded over the years) to the iPod as well as whatever was in My Documents.
My question: Is it the case that if we have to wipe the drive clean and start fresh, after reinstalling iTunes for Windows, would someone kindly verify the following as relates to a repaired PC? I'd be most grateful.
1) Using disk mode, I can copy all of the digital music files (not iTunes files) to the new computer using disk mode, and then re-import them into iTunes
2) Using disk mode, I can also move all the photos from iPod into some new directory on the computer using disk mode
3) The music on the iPod that was originally synced with iTunes will no longer be moveable back to the new PC (instead, it must be re-ripped into iTunes from CDs)
4) The files from the My Documents folder on the iPod can be copied to the new My Documents folder on the PC.
If the above is true, then having to replace the hard drive or PC won't be a big issue. If some or all of the above is NOT true, then I have another problem to solve.
Thank you for any assistance!

Answer 1

Rather than move the files through Explorer (you'll have to enable viewing hidden files, they'll all be numbered, etc.) I'd use 3rd party software instead, such as Yamipod. If you do buy a Mac you can use Senuti.
If you have full resolution photos on the iPod, they will be visible in a Photos folder and you can copy them.
You can use Yamipod, Senuti or other software to move your music to the new computer.
Yes, you can copy any data files you've placed on the iPod to the new computer (I'm assuming you enabled disk use and you copied them over and they aren't music, videos, TV shows, photos or anything like that).