the MSAR (Medical School Admissions Requirements), published by AAMC, has the information you're looking for. I have an outdated version that shows the breakdown for the 2001 entering class which kinda gives you an idea.
TAMU
1668 Applicants
495 interviewed
68 new entrants
Tech
2199 Apps
614 interviewed
120 new entrants
UTMB
2529 Apps
1145 interviewed
205 new entrants
UT Houston
2602 Apps
1157 interviewed
204 new entrants
UTHSCSA
2516 Apps
957 interviewed
208 new entrants
UTSW
2578 apps
617 interviewed
204 new entrants
Baylor
1686 apps
617 interviewed
168 new entrants
Obviously these numbers are a couple of years old. I know Tech is expanding their class to 140 for 2004 entering class, and UTSW said they were going to fill about 220 spots.