So there isn't a better excuse for replaying through the games I already own from having no cash. I'm playing BattleField 2142 at the moment, which this time around I'm really enjoying. The music on that game is epic for an fps and the unlock system really gives you something to work towards.
I did buy one game recently called Savage Moon, its a cheap tower defence game on PSN. Really good fun and really challenging, its a shame there is no multiplayer though 
All for now,
Peace,
Icey.