The Topologilinux works really well, especially if you a newbie like me!
I had almost no problems installing it and was up and running at the root in less than 30 minutes. (Someone with more experience could probably do it in less lol). It installs almost completely on its own (once you run the win32 setup and reboot)
If I had you problem this is the way I would go! I have XP
as my shameful primary OS and screwed up my computer pretty bad trying to multi boot so the CD booting on Topologilinux works out great.
The one problem ran into was keeping XP from "stealing" HDD space from it. I solved it by using a separate HDD all together. There may have been annother way, but I'm probably not THAT XP "intellegent" to be able to do it.
Good luck if you try it out- I love it