I'm using the 1050/750 combination as well. It's kind of a holdover while waiting to see the new Pre/Pros. Started with the 1050, decided I wanted more power and got the 750. It's almost a shame to have a receiver with the power of the 1050 being used only for pre/pro, but I will use it to anchor a new bedroom HT when it gets replaced. Something I 'm hoping for on the new pre/pros will more more optical/digital inputs(I have all 3 used and wouldn't mind a fourth), and perhaps more robust component switching options. With the gear I have now, I can't use the 1050 as a central switch/focal point controller as I'd like.

Component list is as follows:

Mitsubishi 46807
Outlaw 1050
Outlaw 750
M&K S150 L/C/R
M&K MPS1625 surrounds
SVS 20-39CS Sub
Mitsubishi DD-6000
Dish Networks 6000 w/OTA module
Dish Networks 5000 w/HDTV module - for HDTV recording source
HTPC w/HiPix HDTV card and Audiophile 2496 sound card
Audiosource amp to drive the sub
Considering a Sony CX90ES to manage CD collection
Phillips Pronto(work in progress) to control the whole mess