Sure thing. 3.4 GPA, but letters of recommendations from professors in hugely different fields (math for obvious reasons, and philosophy for character breadth), and I've gotten into some decent programs that I'm quite proud of. I think you'll be fine, and wouldn't worry about your GPA too much. Work on getting a high GRE score (in all 3 sections) and if you can get some good work experience, it'll go a long way in your application.