The Blue Snowball is pretty nice, but I haven't been able to try any other USB mics so I can't compare.
^^ yeah, i tried that for a while until i think i blew the soundcard or something o__O?
it still plays music fine, just when i record straight into the computer it sounds like fuzzy...i dunno, intolerance.
Samson do a few nice USB mics.


The four of five models they do are listed on that page. Friend of mine has the CO1U or the CO3, they are pretty good sound quality.
Main Gear:

Santiago S3 Spanish Classical
PRS CE22 Mahogany
Mesa/Boogie F-50 combo w/ G12K-100
Teese RMC Wizard Wah
Rothwell Switchblade
Ibanez FL-9
Visual Sound Liquid Chorus V2