An App Idea, but can't code

I've got a Moto Droid, and I'm a graphic designer. I know HTML and CSS and all the web stuff, but I only had a little experience with C++ in high school, and thats it…*I've got an idea for an app that is sort of like Google Maps…*shows your location on a map, save your position, tracks, trips, etc etc…*I think this could be huge because theres only 1 or 2 out there like it, you have to pay for them, and user comments for them aren't very good…*I think I can do so much better lol… Can someone point me in the right direction with this?

I've been on the Dev site. Got the SDK and ADT plugin, but haven't gotten Elipse because theres like 10 different programs (I'm on a mac)…*The biggest thing holding me back is that I'm not a programmer, but am willing to learn if I'm able to. Any help would be greatly appreciated!