Well, I have good news and bad news. The good news is, I got Windows installed on sda4 and it works even after installing Ubuntu on sda3. The bad news is, now when I try and boot Ubuntu I get a "GRUB GRUB Geom Error". (As in, I select Linux in rEFIt, I get the transparent penguin, and it errors)

Please tell me this is easy to fix?
-Craig

Edit: Well, now it's just saying "GRUB _" and the underscore flashes. IDK what's going on. Delete the partitions and try again maybe? I can easily restore my XP partition w/ WinClone in OS X. I had created a swap partition, but decided not to later to I used my livecd to delete it, that might've screwed it up...