Give me some ideas on gear placement!

[BoomerK6]

In a couple of weeks I'm getting my my new plasma (Panasonic TH-50PX80U), Onkyo 606, and Polk Monitor series speakers. I made a basic design on what I would like my overall setup to look like when it's finished, but I think it could be better with some help from you guys. Not too sure about where to place the surrounds since my living room is oddly shaped. I would very much appreciate it if you could take a second and look at the diagram in my HT Gallery and tell me if this will work, and if there are any changes to the speaker placement you would recommend. I know it's only a diagram, but it's pretty precise as far as dimensions go. Viewing distance from the sofa is just under 9 feet. Let me know what you think...