syphi.net

not sure if you were still looking as the original thread only had a couple of suggestions, but here are some I wanted to add before the thread got locked.

freshtrax.com
autopwn.com
pwnaged.com
autohunt.com
SitAndGrind.com
Fantabulous.com
autoGrind.com
shhhhhhhhhh.com (s with 10 h's easy to remember)
LootAlot.com
EveryNightHasItsPwn.com
OffsetsR'us.com (can't use apostrophe but i thought it was funny!)

and my personal favorite:

FUifUdontLikePwnage.org