If you can't do nights and weekends, and are bent on being a full time student, then you should really consider the very top schools....and I say that as someone with an MBA from LSU.
You are in very good shape now if your estimates of future income is accurate.
If not, then an MBA wouldn't hurt...but you are at a point in life where you'd face serious opportunity costs if you were to quit your job for a couple of years. It's not a big deal if you can go to school at night or even (gulp) online.
Try U of Houston, UT, or Rice if you are in Houston for part time or professional programs...maybe even LSU's online MBA.
If you choose full time, look to the east coast.
This post was edited on 3/6 at 9:23 am