You seem to be familiar with Houston given your statment above...white people are definately the minority in that city...
But there are relatively fewer Blacks here compared to most major cities, which is always a plus!
Our minorities are mostly hispanics and asians.
Houston is overrun with chain gyms (Ballys, LA Fitness, 24 Hr fitness, etc).
I think there is a Gold's on Hwy 6 north... I've never been there so I don't know how it is.
Hank's gym downtown is good, but is probably too far to drive for someone on the NW side.