I've been playing in and running a 3.5e DnD games lately. The system seems pretty good from what I can tell. I've only played in a few pen and paper games before, but 3.5 has a lot going for it and I am having fun there. I've also played and run some games in one called Ironclaw, which was fun...though some of the systems were odd at times. I do greatly like the way that the health system was done in that game, I like it more than simply having a pool of hitpoints like most games. There was a distinct lack of 'monsters' in the game though... it is supposed to get more social and cloak and dagger, but I ended up having to invent a lot of mobs for dungeon stuff.