I know it may sound silly, but on Facebook there's plently of poker games, you play with virtual chips, building your way up from scratch, (or you can purchase bulk chips with card/paypal, although you dont need to enter any payment details at all otherwise), and the best part, its all totally free, you play with players all over the world, on over 1000 different tables, low stakes, high stakes, knockout tournaments with real cash prizes sometimes... take a look at it :)