I was a Big Lots and saw they had Guitar Hero 3 for the PS2 with the wireless controller for $50, they had an endcap full of them. I don't know if this is a national deal they have going for the holidays or if it's local.
Dunno if this is the right board for this, but here goes:
http://sell.preplayeddiscs.com/welcome.do
Someone linked me to this off Craigslist and I checked it out. McAfee SiteAdvisor hasn't rated it yet and I'm suspicious of basically anything on CL. The prices they're quoting for stuff also...
www.Graveyardmall.com has Resistance Fall of man for $29.99 as their deal of the day. I've ordered from once them before and they were pretty reliable.