Yes Leslie, one page is what I've always heard. At least when interviewing for your first job out of college. I've had two jobs since graduating and I still try to keep it down to one page. It's getting harder and harder to do, and eventually it will have to be more than one page, but for now it's still one.
Greek_Girl, you might also look at the font you are using. I know that 12 point Times New Roman is smaller than 12 point Courier New (a fact which will help you in college when you are trying to stretch a 15 page paper into 20

). So experiment with that and see if you can't get it onto one page.