Hey, I'd say welcome but it seems you've been around for quite a while already. Either way, you're hardly alone, there are many like you around here. You should have no issues finding people to get along with. Don't hesitate to ask the Global Mods, or myself any questions you have.
As for Roleplaying, speak to Hukuna and King Murdoc and they'll get you started in the ever expanding roleplaying forum.