http://uk.mouser.com/stm32discovery/
12bit ADC *AND* 12bit DAC (2 channels).
Might be useful to somebody here for something or other
EDIT : Don't buy it from Mouser - they are charging £12 for UK delivery. Yes, that's right, £12 delivery for a tiny PCB that costs £7 :/
ANOTHER EDIT : for a little bit more there is a version with a small LCD readout and a touch sensitive slider / buttons on board
http://uk.farnell.com/jsp/displayProduc ... price=true