Is there a good online site for buying singles for this game? Me and my friends just started playing and i was trying to figure out how to put a good deck together so i wanna buy some singles thanx for your help

Best places to look: coolstuffinc.com and ebay (no kidding).

RockStar said:

Specifically look for a seller by the name of Turtle Terror.

Good guy, who's been fantastic to deal with, and I usually buy more from him then from CSI.