I was accepted into school for this coming fall with an overall GPA of 2.76 and a pre-req GPA of 3.9 (I'm a non-traditional student). The best advice I can give you is go above and beyond what is expected of you in the other areas of your application and apply early and often. Research schools to get an idea if they just look at numbers or if they actuall look at the whole person. Also, do well on the GRE and that will help off-set the GPA a little.
Good Luck!
Oh ya, do some searches on this site and you will find a ton of success stories. They are very motivating and helped me a lot to stay positive throughout the app. process.