Gary-

My 2 cents worth, from someone else pretty new to the sport (and also from Houston)

Get a second plane.  I had been flying for about 6 months, about 8 weeks solo when I got my second plane.  It is an 40 size ultra stik, top wing, and equipped with flaps (haven't used them yet).  I've decreased throw to something pretty minimal, but will say that the plane has taken my level of expertise (lets call it beginner +) much higher much quicker because there is so much more I can do with this plane over my trainer while at the same time, it is easy to fly and to land.

I still get my trainer out pretty regularly. It's just fun to be able to relax and know what the plane is going to do. 
Larry