There are couple of really reasonable clinics here in Houston that have stellar success rates (compared to the national average). I'm pretty sure the clinics Mary at The Donor Solution would recommend are:
Dr. Schnell at CORM (she had a 72.7% donor egg live birth rate in 2007 per CDC, and did a lot of cycles)
or Dr. Gill at Houston Fertility Institute (he had a 59.7% donor egg live birth rate in 2007 per CDC and a 64.3% live birth rate in 2008 per SART)
I know this because I'm using her agency, because her donors are great, and she's about as cheap as going with a clinic donor, and I interviewed both of these clinics (actually I interviewed all the clinics in town) and they were the best and most reasonable, and she ended up agreeing with me after I asked her about it.
That's my $.02