Ubuntu Wubi?

[natethegreat!]

I'm thinking of switching to Ubuntu Fiesta Fawn (I have an install disk), but I have some questions. I would be using it on a Dell Dimension 2400. I don't have my Windows XP reinstall disk, and my comp's out of warranty (so I can't get a new install disk free), so I was thinking of perhaps using Wubi, but I've heard it doesn't play well with NTFS hard drives. Both my portable hard drive and internal hard drive are NTFS, and I have absolutely no idea how to change that. If I installed Wubi on my portable hard drive and had problems, would it corrupt my internal hard drive as well? Would it destroy my portable hard drive? Thanks for the help.

[sr71000]

wubi should have no problem working with your current setup just install and put it on your windows disk. The entire os exists inside a .vhd file on your hard drive It's a complete install though, no craziness! Let us know how it works!

just to say..i've never even heard of wubi..but that's from their faq.