$35 in PSN Funds, What do I buy?

I traded something in on Thursday and bought a PSN card which now gives me $35 in funds.  What should I buy?  I'm debating the following

The original Syphon Filters for the PS
The original Call of Duty
Ratchet and Clank Quest for Booty (for Andrew of course)
The original Resident Evils for PS. 

I still have Uncharted 2 to finish as well as both God of Wars for the PS3 and several 360 games.  What a backlog.