Make sure the pay level you start at is enough for you, because once you are employed here, your pay will not rise very much at all. Sometimes it seemed the only way to get more money was to transfer your way into a higher level position with more pay.
The parking situation for new employees means that you will most likely have to park in the commuter parking out by the credit union and ride the shuttle bus to your office. The only drawback to the bus system is that it ends around 7 p.m., so plan accordingly. Also, be sure to get your name on the waiting list right away for the parking lot you want, because it can take a long time.
Try to learn as much unofficial information as you can about a department before you take a job within that department, don't take things at face value. Try to find people who are willing to be honest about that department. Overall, the school is good, but certain departments have reputations for being difficult to work in.
If you do not work well within a bureaucratic type of organization, you should probably not apply here. There are rules for everything, and patience is required because all the correct signatures have to be gathered before some things can happen.
Individual creativity can be somewhat stifled. This is not unique to Texas Tech, though. I'm sure all large universities have the same structure.