I also picked up a cool game called UnderWorld
It's a subterranian Urban Fantasy game set in the subways, sewers and caves below NYC. The game mechanics are simple, but some bits are too vague. Still, I like it, and recomend it highly! Just don't be afraid to do a lot of creative rule fudging. The system is very dependant on the GM to make up a lot of the fine details. UnderWorld is also designed to work as a table top or a live action RPG, with a very creative Live Action combat system backing up the round by round table top combat system.