You can never be too careful!

I was sitting on the bus at Shibuya station, waiting for it to fill up so we could leave, staring out the window. Someone walks into my line of vision outside, texting on a cellphone, with shoulder-length dark hair, big thick glasses, and a scarf on, wearing a very fashionable black/white striped shirt.

Initial thought: "Oh...my god is that NAGAYAN?"
Second thought: "Wait, no, duh self. This chick has long hair and looks...well, like a girl."
Third thought: "Wait. NO. DUH SELF. NAGAYAN HAS LONG HAIR AND...LOOKS LIKE A GIRL."

Ladies, this is just a reminder that you can no longer immediately assume it is not Nagayan because it "looks like a girl." Unfortunately, on closer inspection I did see that it was indeed a girl (unless Nagayan suddenly dropped that peach-ass of his for a flatter model and started wearing skintight black pants :/).

Anyways, moral of this story is: Yudan sezu ni ikou~

Yes, I am vain.

So, I think...I wanna join a gym. Or work out somewhere at least. Maybe it would only be a couple of nights a week (because I NEED my time online alone _o_), but...I really think I need it. I used to get a decent workout in Shiga by having to bike everywhere, and while it's nice now to have the trains to take me where I want to go, especially in the summer heat, I know it's already starting to show in my "problem areas" :P

I've never had a gym membership before, and only really BEEN to a gym, period, once or twice in my life. I know I definitely don't want to go alone (at least not the first time), though I don't mind actually working out alone.

I don't have any particular thing I like to do at a gym -- I like variety: some treadmill, some biking, some weights (not really heavy lifting to buff up, just enough to tone), and if there were some courts or something someone wanted to play tennis or something on, I would not object ^_~

Are there any primarily-foreigner places you guys recommend? Preferably less than 10,000 a month if possible, and preferably on the Ikebukuro/Shinjuku/Shibuya side of the Yamanote. Are any of you guys going to gyms on a semi-regular basis and either wouldn't mind a workout buddy or at least can point me in the general direction of a nice place?