I know the Raley's On Lichen in Citrus Heights had games in Red Box. The store has two Redbox Units and I checked what was in both of them. They only had maybe 10 titles each. I would say I saw more PS3 than anything else. I don't believe I saw any Wii games in it. They had Dead Rising 2, Fable 3, Fracture, Batman AA, Medal of Honor, Enslaved, Halo Reach and some sports titles if I remember right. I am pretty sure most of the Redboxes in the area are going to be similar. I really wish Redbox would update their site so I could locate games online. I would very much like to rent Spiderman Shattered Dimensions or Alan Wake for a couple bucks.
Edit: I check out the Redbox in the Roseville WalMart on Lead Hill today. It had two games Kane and Lynch 2 and Halo Reach.