don't have a dvd burner. grub
If I don't have a DVD burner (I'm on a Thinkpad T40) is it possible to mount the installer image in Ubuntu and run it like a virtual DVD? If so, any quick pointers?
Also I currently dual boot XP and Ubuntu 7.10. I'd like to triple boot by adding 64 Studio. If I run the 64 Studio installer will it see my existing grub and simply add an option for the 64 Studio partition?
Thanks!

100% correct
GRUB loader
USB booting
You can buy a DVD