I use threadless for all my T shirt needs. Just don't make the mistake I did of going through the archives and looking at all the T's that you missed!

T's I own:
Sexy Pack
Bad Reception
Squeaked
Defend the Kingdom
FrequenCity
Take Me To Tokyo
Ambition Killed the Cat
A Key for Everything
Halt! Who Goes There?

And my favorite T shirt of all just got re-printed!:
Geology