Host Hotel
The Hilton Garden Inn has offered a special STARR Trek rate of $102 (mention the race when making your reservation). For the special rate, call the hotel directly at 361.991.8200. It's close to the race site and to restaurants.
Rooms are limited so please book early. You can also visit their web site.
If you're looking for a hotel that's a little more exclusive and right in the heart of downtown (still with great rates), try the V botique hotel. Or at least check out their web site; it's really nice!