I checked my pay-pal receipts and after a tonne of Polaroid/Fujiroid related purchases, (I've been on an instant film kick as of late) I found I bought a Steam version of Vampire the Masquerade: Bloodlines on July 31 (I still have my original copy somewhere, but I'll pay $5 to not have to dig the cds out of storage). At the same time I pre-ordered From Dust, bugger, you can't win them all.
I think more recently I bought a copy of Call of Duty for $2 at an op shop (thrift store). I jump between Steam games all the time but I only like to keep one disc in the drive at a time so I had to drag myself through a second play through of ME2 before I could try it out. I played it last night and while I don't like it as much as Brothers in Arms it is a pretty good WW2 shooter. The most recent game I recieved would be Deus Ex: Human Resources but I pre-ordered that as soon as people started raving about the leaked beta.