I need a good MP3 site that lists a lot of mainstream acts...I tried Napster, but they don't deal in MP3s anymore, just fullsize WMAs. And no, downloading fullsize wave files to my hard drive is not an option with my dialup ISP. I tried a search but the few places I tried did not have the titles I was looking for. E-music for example, seems to specialize in indie or obescure acts. Not what I'm looking for. Also, I-mesh is out of the question.

This is for my wife who wants to hear Top-40 type music, but doesn't want to buy an entire CD for one or two songs.