Wait a couple of weeks and see how things go as rumors are saying Nikon will announce a new DSLR. Then see what comes in the second-hand market, who knows, maybe you'll find a decent D700 to play with. Also, lens: always check the second-hand market first, I got a lot of good gear that way because some people had to sell in a hurry for financial reasons.
But as always, my advice when you buy second hand: always buy from a trusted and reliable seller. Avoid online purchases if at all possible, just in case something goes wrong. It is easier to deal with a local photography store which sells second-hand items than an online seller who could be living half-way around the world.