Does anyone know of gyms in and around the Rancho Cucamonga, California area? I am sick of the commercial gyms here like 24 hour fitness and the like. These gyms are way too crowded and getting a good workout can take the better part of a day because of waiting for dumbells, benches, and machines. I wish I had half a day to spend in th gym, but I don't. Anyone know of some less crowded places?