Recently having about a month due to educational committments for some of my group. But only started playing again in 2003 after 10 years without any RP, though I did still play some CCG like Illuminati and Mythos with RP links and boardgames.
My last true table top gam was last August. I play nearly every week online in two separate chat games. I haven't found a game on Cal Poly's campus or near by, so I've just stuck with my online games.
Have you tried checking the "gamer's wanted" boards at All Star Games? I went to Cal Poly, Pomona, also. It's easy - just take Temple east to the 57 freeway and go south to Pathfinder. Exit Pathfinder, make a left, and then make a right on Diamond Bar Boulevard. They're in the little strip mall with the movie theater.
Anyway, at the back of the store posted on a door are some little classified ads for gamers seeking gamers, if I remember. Also, the staff are pretty friendly. Ask them if they know of a game you can join.