Concerning the Onkyo 605, it does not have pre-amp outputs for use with the LPA-1 or other outboard amp. The Yamaha RX-V661 is a comparable receiver with the pre-amp outputs.
Haha, well that will show me for not doing some basic research on my other options. Thank you for pointing out that 605 does not have pre-outs, lets me know to take it out of consideration. The Yamaha looks like an intriguing choice, though I wonder if I am better of going to an RX-V1700 and not getting the Emotiva...or maybe even the Onkyo TX-RS805. This would get me a good mix of power (even bi-amping if I want to try it) and I will just leave video processing out of the equation.
Also what is your speaker setup? The speakers and the room are the most important audio components in your system. Spending $500 on a new receiver and $1500 on speakers and/or room treatments might be a better upgrade path.
My speakers are described above, the beginings of a Paradigm Studio setup with a new Studio centre coming irregardless of the receiver choice. As for room treatments I think the layout of the room, two walls of all windows, one of all doors and the back being open to the kitchen make any room treatments impossible (outside of getting some nice heavy drapes to block out the sun for daytime movie watching).
On a side note, looking at the new receivers coming in the near future I noticed that very few have more then one HDMI out (except of course ones out of my price range). From a set up perspective isn't this a great limiting factor? If I wanted to run a cable box, dedicated Blu-Ray player and a gaming console all from the receiver to the display, would I not be stuck using only one of the display's HDMI inputs and be limited to only having one set of calibrations to cover all three sources? Is there some way around this or is my theory incorrect?