I got my wife this one:
http://www.bhphotovideo.com/bnh/cont...ughType=search
She's a soprano. We got the battery-powered Sony mike for it as well. The display is sharp, and it can get up to 20 hours on one MD.
It cost $300, and was well worth the price!
The quality is also nothing short of awesome, and we can edit the songs by transferring them over via USB and converting to .WAV format.
Thanks,
Mitch