I had this idea for a melody and bass line. Now, I'm stuck. Can y'all take a listen and give some suggestions or tips? Or you can just tell me it sucks and I should scrap it. Thanks!

http://www.mediafire.com/?zl4mreymmbu

Certainly...
From a purely technical point of view, it's good. All notes are in key etc.
However, it's not very original and it's very repetive. Try working more with harmony and try a different chord progression.