My laptop (Inspiron 1501) is currently running 7.10 Ubuntu (it Just Works - I've tried Slackware and even Debian and I really don't feel like having to put in days of work to make my laptop work). It's rock solid.
I have ubuntu as a temp file server in my apartment, but I will likely just put Windows on it (although I would like to have Samba and the firewire external HD to find some amicable agreement).