I have 850s and they are awesome man, don't regret the purchase at all. I purchased brand new though, as not many were coming up second hand, due to them still being fairly new, and not many people selling/upgrading from them. You will probably struggle to get two for 1000, i think jaz scored his for around 1250 used though. However there may be more used units in canada, not sure. Best bet would be to keep your eyes open, and look on all the online sites and watch them when something comes up. If they continually sell above your budget, you will either have to keep saving, or go for some 800s or 350s. IMO, 850s are the way to try go though, you won't need to upgrade, and when buying used, you know they aren't too old, as they haven't been out that long. Whereas buying 800s used, they could be 5+ years old and thrashed, and you can't always tell until you see them first hand. Let us know how you go with it bud