Quadro K5000 is very much like downclocked GTX680, so you can get about 100MH/s with it. Hardly worth the effort, you better sell it.
Wow, yeah, that sucks for a $1,800 card. Definitely better selling it.
Do you know where I can sell a card like this for bitcoins? the "pay with bitcoin" market is pretty small still.
Sell it for fiat on eBay and buy BTC afterwards.