Hi all, I am upgrading my Cannon sx6 to a 1080p projector. I have researched for a while now and have come to these 2 projectors. The Optoma tx1080 or a used Christie DS+60 for ~$1k more. The Christie has a native rez of 1400x1050 Pixels and Maximum of 2048x1536 Pixels. Does it matter that the native on the Christie is lower than the Optoma's native 1920x1080? Does anyone have info on the speed of the color wheels on these 2 pj's(ie 5x,6x)? The Christie also has a much higher contrast ratio, 5000:1 vs 2200:1. The Christie is 4 year older technology than the Optoma. Will this be extemely noticable, what would the differences be? The room has alot of ambient light. I will be using a 16:9 10' wide grey screen, the same one that I have been using with the Cannon. Is there another projector that I am overlooking with a min of 3500 lumens close to this price range? Thanks in advance for any help. G