If I had to blindly pick a lens in any mount, it would almost always be a 50mm f/1.8. Why? Because that has been the most popular prime lens for decades, and there are several really easy, well-known formulas to make it.
Thanks for the input, ya'll. I'll forward the info on the 50mm, which is one that I actually recommended, since I really like my own Minolta 50mm 1.7. Yeah, Shawn, he thinks that is the one that came with the camera, so that's good to know that you recommend it.
Thanks again for helping out a member who has only been to one meeting!