I went and saw the first USM vs. LSU game last year, and loved it, even if you dont like USM they are very hospitable fans outside the stadium and very passionate for such a small team, they do however, become abrasive come game time though, atleast the students do.
Me personally I want to go to the CWS even if my team (Texas) doesn't make it (which they should) it's just a great experience, my best friend went last year to see USM and loved it, said it was awesome.