Thank you both for the posts. I've been thinking about it. I kind of wonder whether splitting the front height channels into four and mounting in front of each row and then mounting the rear heights behind the second row would be a bad thing. It would change the sound concerning each row, but wondering if that might be an okay setup. Just thinking out loud.
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Main room
Epson 5025UB
120" Visual Apex fixed screen
Outlaw Model 7900
Outlaw Model 5000 (for the ceiling speakers)
Marantz AV7702 MK2
Oppo BDP-105D
Axiom M80's, GoldenEar Super XXL, GoldenEar Aon 3's (sides and rears), GoldenEar HTR 7000's (in-ceiling for Atmos/DTS:X)
Outlaw LFM1-Plus and EX
Directv HD DVR
2 HD Monster Power centers
PS3
Harmony One