I would really like to trade up to an EP800, but I can't unless I sell my EP600, I would like to hock it before the pre-order period is up. Any clue what I could expect to get for it?

Nevermind, I see couple of similar threads.

you can actually use the "trade-up" feature to trade in you ep600 toward an ep800

If you didn't see this thread, I had the same question...

Jason

Yeah, I read through them. I guess my logic, similar to yours, was that selling it and and paying the pre-order price is about the same as the trade up and someone gets a good deal.

Plus, just in case you decide to keep both, you retain that option.