Corset
You can get American Cherry at Fitchett & Wollacott's on Lenton Lane. I don't know what they charge, it's a long time since I have bought any.
The main problem is the quality, it can be very variable indeed and if someone has already picked over the stock, you will be getting very bland pieces with lots of sapwood.
The best supplier of American Cherry I know of is Whitmore's, down near Hinckley. A bit of a drive but well worth it, and they do deliver. They had some fantstic T/T waney-edged boards, good figure, good colour. More expensive than the 4-edge stuff, but excellent, just like it used to be.
HTH
Steve