Thank you for your offer to test some things out for us. Given that you have an Xbox 360, I have a test suggestion for you that should help to alleviate THE MAIN QUESTION on many people's minds about the a2000 series: namely... does it properly deinterlace 1080i.
This test is not precise, but it should be good enough to tide us over until someone comes along with advanced 1080i test patterns. As you know, the Xbox 360 is capable of outputting in both 720p and 1080i. While the internal resolution of the Xbox 360 is 720p, I have heard it does a good job of upscaling to 1080i. Could you try out both modes (with no DRC sharpening or any special modes) and let us know which one appears sharper. It might be hard to tell within a game in motion, but I've heard that the dashboard menus (especially if you have a detailed background) look sharper with the 1080i output.
Here is what this "might" prove:
A) If you can't tell the difference... it proves nothing (but thanks for trying anyway).
B) If the 720p looks sharper, then we have cause for concern (because the a2000 might be just bobbing 1080i content instead of deinterlacing).
C) If 1080i looks the sharpest, we have our first partial proof that the a2000 series properly deinterlaces 1080i content.
As a side note: I'm personally interested in your opinion on how bright the display is, and if you can notice any video game lag (at 720p without game mode, and at 480i & 1080i with game mode). Wow that's quite a few requests. If you can answer even one of these requests, I'd be appreciative. Have a blast with your new TV!!!