Right now I don't go past 45 (I'm assuming that DB?) on the Sony while watching movies. Hopefully the RTi's won't require in to the 70+ for the same volume. Otherwise I'll have to rush looking at receivers haha. Thanks for the heads up.
Once I order the speakers I'll start looking into receivers. I just take a long time to make decisions on expensive things, and since I'm looking at the 1-1.5K range I'm sure there are a lot of options. The Pioneers look amazing. However I need to look into all the options and see which one has the features I want. I could also look into separate Amp and Processor pieces (noticed one of the Emotive Amps is 400w x 5 channels!).
XStanleyX - I'm having to re-think as well. The 3006 is wide enough and can hold the weight of the CSiA6 but it's only 6" deep. The CSiA6 is 14" deep... I think I could live with 10" but then that one is only rated for 25lbs. Makes me want a soldering gun, I could add 2 metal chair legs with adjustable feet to help support the weight.
By all means do as much reading as you feel you need. I have been looking at new AVR's for over the past 2+ years, waiting for a model that can handle my LSi's without an external amp per channel. For 1-1.5K I would still go with a Pioneer SC model over separates for a HT personally. Personally look at the SC-67. All the power you would need, a phono input and just about anything else you would need (except a USB DAC which the 68 has). Has pre-outs so if you want to power your fronts with an external amp you can, but you may never need to.
Emotiva amps are great for their price but I would rather go with an integrated to save on the cost of quality interconnects (mine are 80 bucks per .5m).
I plan on going with the SC-67 myself if I can convince the wife to do it. Like you I am going to wait and cash in on a VERY GOOD model to ensure my LSi's are properly powered and it will last for a LONG TIME.