I'm selling an Arduino Due. It's listed for $40 on Ebay but if you make an offer for $35, it's yours!
I also have an Xmega A3BU Xplained, like this: Digikey page
I'll sell that for $25 + shipping. I don't have an ebay auction up for that, but I can send you an invoice with Paypal.
Both boards are new. I powered up the Xplained once but never used it for any projects.