I'd also advise against a female roomie.
I'm on my second roomie now.
First: really good friend Jerry, he owns a house. Was a total bachelor pad - no dining room table but we had a pool table. Two tv's + 2 360's in the living room. Crappy ass couch, torn up carpet from the dogs. Basketball goal outside. Beer stocked fridge, plus plenty of meat for grilling. Dart board where we played a ton. Wires and cables all over the floor from running our network setup. Lawn that looks like neither of us ever took care of it. Greatest thing ever. He got engaged and was going to get married, so moved out.
Second: good friend Jenn. She's cool as hell as a friend and to an extent, as a roomie, but just did stupid crap that just doesn't make sense from a guy's POV, but made sense to her. Clean, obviously keeps things tidy, don't see her much as she's at her BF's place a lot, which is a good thing. Always watches E! Online or some stupid crap like that. (Ended up moving my DLP into my room just bc I didn't buy that TV for her to watch stupid crap)
It's definitely a different feel living with a female vs male. Think assuming you have a good relationship with a guy friend, it's best to be a roomie with a guy rather than a chick, but that's just my $.02.