though NOT linux or even close to unix loo here
www.menuetos.org
boots off of floopy and is FAST
but what i would do is buy a cdrom that connects via pronter port. i have the micro-solutions batanm 24x w/ sound and KICKS BUTT!!!!!.
or u could alwys take out the HDD put it in ur tower to install and put it back i the latop. just make sure that the HDD isnt integrated into the mobo bc i have one laptop that is and it SUCKS
hope that helps