The subject covers the high points.
I have an original August (arrived Sept.) kit with 2 cards averaging around 30GH/s.
It has been mining on and off at eligius at:
http://eligius.st/~wizkid057/newstats/userstats.php/1PNv6yHvwEToEX2bWvwUDz5RMt21MnZZHdPrefer a US buyer.
This would be for the whole kit (i.e. 1 M-board, raspberry pi with sdcard and the two H-Cards).
This kit was never over-clocked.
If you are good with a soldering iron (and more adventurous than me), you can probably get more speed out of these cards.
Realistic offers will be treated realistically.