Let's step back a moment. First things first, you need to decide if CIH (constant image height) is important to you or not. Read up on it and decide. This will determine the aspect ratio of your screen. In other words, do you want 2.35 cinamascope movies to completely fill your screen with no black bars (this is accomplished with CIH), or do you want 16:9 HD TV from cable or satallite to completely fill your screen with no bars (this is "normal" for now, in other words it's what happens if you buy a 16:9 plasma or LCD, and called constant width)? Whichever you choose, the other one will be a smaller image and will have black bars on your screen (either at the top or sides, depending which you choose). The advantage of CIH is that the 2.35 movies fill the entire screen (you use a 2.35 ratio screen instead of a 16:9 one), and then 16:9 TV will be the same height, with black bars on the side.
I know all of that probably sounds confusing unless your already familiar with it. You could research it a little more in the CIH forums or I could possibly answer any specific questions you have about the difference of constant height or constant width.
If you decide CIH is important, you will want to strongly consider the AE-3000 Panny, because it can do CIH without using an anamorphic lens setup (thousands of dollars more in most cases).
All of the newer 1080p projectors will provide you with a very nice picture, it's just a matter of what features or picture quality aspects are important to you (such as black level, brightness, etc).
I will personally be going with the AE3000, because I want cinemascope movies to be the biggest, grandest picture in my theater. Perhaps that isn't the case with you, then any of the models could be a good fit. I just wanted to point this out in case it is important to you.