I suggest you can try "R33" and "DCFavour" as I found most 2nd hand netbook is asking for 2K, but you can nego. down to 1500 - 1700 range from my recent experience.
I don't have any for sale, but I just bought a Acer 1410 CULV for $2K / 1810 for $2.2K with half year warranty on one of the mentioned above. With much better spec (2GB RAM, better CPU, win7-64), the addtion of $500 is worthy when compare with spending $1500 for a Netbook. U only need netbook when long battery life is your concern.