Well, we went ahead and switched from Alltel to At&t and got iPhones. We have 3G out 4 miles west of Spfld and have great reception. We'll see how the battery lasts, that's really the only thing I'm worried about now. The phone part takes a little getting used to. I've got Otterbox Defender cases coming for them too.
I downloaded iRinger to create ringtones from my old mp3 ringtones and it works great. It imports several audio file types, previews and exports as m4r files directly to your iTunes ringtone file. Sleek and easy. You can't cut out sections of songs with iRinger though, you'd have to use Audacity or another audio editing program and then run them through iRinger. That's all on a PC, if you have a Mac, you can use GarageBand and it edits and exports directly to iTunes as m4r files.