Integra dtr-70.2 vs. dtr-80.2

I've been waffling between receivers for months. First thought denon avr-4311 was all me, but these Integras seem to have less problems and all the same features minus 11.2 capability.

so . . .

Is the 80.2 worth the extra money ($800)?

Here's what audioholics has to say about the 70.2:
"If you are looking for something a little cheaper, Integra has simultaneously announced the DTR-70.2. This receiver sports almost all the same features except for slightly less power, a few less inputs, and without the separate transformers and power supplies for $2000."

If I'm going to power my front 3 with can emotiva xpa-3, is the separate transformers and power supplies worth spending the extra money for?

which is a better option: 80.2 on it's own, or 70.2 + xpa-3?
they are roughly the same price.

What about the difference between 24 and 32-bit burr-brown DACs?

help!

that's definitely the way I was leaning, especially since the 70.2 + xpa-3 is actually cheaper by about $300.

I've heard both sides of the story about DACs but haven't heard any receivers side by side with the exact same equipment to be able to compare. sometimes it seems like people have a point, other times it seems that they are just defending the gear they own.

anyway, thanks for the reply. hopefully some more 70.2 owner's will chime in either here or on the official 70.2 forum.