Sounds like you might need a good bike fit.

If you are in College Station a lot, you ought to go by the bike shop on South College and University Dr. right next to the IHOP and Harry's (used to be a fabric store and I think there's a cajun restaurant in the same shopping center). Of all the shops in town, I liked BCS bikes the best. The guy who owns the shop is a real nice older fellow who helped fit me to my bike and they were always more than willing to let me hang around and show me how to work on stuff on my bike.

Aggieland cycling is good too, but it's the main hangout for the A&M Cycling team and I always found it to be pretty intimidating to go into.

Either one of those shops should be able to fit you to your bike and help you choose your new saddle if that is the problem. I know BCS Bikes has a wide range and selection available of all kinds of things and the guys there were very helpful.

You can also check Craigslist for all of those areas - I found that there was always a plethora of cycling equipment and good used bikes available on there. I always felt safe dealing on craiglist in aggieland too - generally pretty good people around there.

Also - be careful commuting around College Station. Especially when the freshmen show up in a few weeks with their big trucks and terrible driving skills. I luckily lived out in Bryan when I was there and it wasn't as bad, but some of those kiddos have some kind of serious problem with folks on bikes.

Welcome to cycling! It's awesome!