I love knoppix, It has great features and a bunch of them right on the disc... It worked GREAT and if you haven't seen BB it's awesome, I had to watch it like 10 times... ASCII text movies fascinate me.
Another linux I like is Freespire, sometimes known as the XP of Linux or Linux XP. It has a decent live disc and can install to your harddrive in under 10 minutes and be ready to go... I like it cause it looks good, it was the ONLY one (Out of ubuntu knoppix etc..) that supported my old dialup modem... so yeah.. it's great.
~PHP