When I ordered my photo chemicals from Freestyle, I threw in a few rolls of their house brand Arista Premium film. It comes in ASA 100 & 400, and I chose 400. Rumor has it the film is really re-branded Tri-X, but I don't have enough experience with film to verify this. The reason to try it out is that it's only $2 a roll, while Tri-X is $3.75 or so.
I do know that people love Tri-X because it's very "pushable," meaning you can underexpose by a couple of stops, then develop it longer to make up the difference. The result? You can shoot your 400 film at ASA 1600. The difference in developing times is about 3-1/2 minutes.
Being new to the film developing game, I had never actually tried this, and I assumed the grain would be plentiful and possibly annoying. Boy was I ever pleasantly surprised!
Good enough for me.