$65 every 7 weeks. i get 1 day a week of private training for about 2 hours (this older dude who works out there pays for the private sessions for all the ams. you can't beat that.)
I work out for free at Ultima Fitness, which is where I work though.
Palm Beach Boxing, where Oleg Maskaev and Kassim Ouma train, charges 85 bucks a month with a membership, 100 for an individual month.