I purchased an N810 for testing of VPN and Remote Desktop for my company, and have had great success with it, but I need something with a bit larger screen, as all of our applications are 1280x1024, so I have to scroll alot in FVWM. I bought it used from this site back in September for $275. I am willing to part with it for $215 + shipping OBO. It is in great condition and comes with an 8gig sd card.
I also have the original box with all original contents included. See pictures of it below.
OT free advice: If you're still looking for compact devices to fill that role, you might look at the U820 (starts at $1000, 1280x800, so almost only vertical scrolling), the 2133 mini-note (1280x768 netbook, starts at $500) or, when they actually come out, the 2140 (2133 refresh with 1366x768, would be only vertical scrolling).
Since Buy.com just reduced the price to $220 with free shipping, I believe I would go for a new one.....DONT forget to grab the 5% off coupon floating around.
I will try EBAY.....I wouldnt want anyone on this board not getting a good deal on their N810, even at the expense of me not selling mine on here....the people on this board were very helpful, and that seems hard to come by.....