Price Advice Need Pricing help

My DH bought me a new iMac for Christmas, so now I need to sell my old one. I've wiped the hard drive and reinstalled Lion and it's ready to go. I just don't know what to ask for it.

Specs -Late 2006(last white model)
24 in
2.16 GHz
4GB RAM
250GB hard drive
NVIDIA GeForce 7300 GT 128 MB Graphics card

I have original wireless keyboard, mighty mouse and remote. Also have a newer wireless keyboard that I bought this summer.

Great cosmetic condition.