I have the following distributions:

Mandrake 10.1 (I cannot find any support on the Internet regarding this Distro, which puts me off a little)
Suse Live dvd 9.2 (Won't work live as it cannot detect RAM or something, so I'm worried it will do the same when I install)
Ubuntu Linux (Lagged terribly when I ran it as a Live CD, and I didn't like the look of the GUI)
Knoppix 3.7 (Installation not reccomended)

Mandrake 10.1 Powerpack seems most appealing currently, what do you think? I'm setting up partitions now for a dual boot, hopefully I'll have something sorted out soon.