I'm following this thread too. I recently upgraded my speakers to KEF R3's for front L/R, and will soon close in on a sub to match, leaning towards Rythmik F12-300. Possible terminal setups being 2.1, 2.2, 3.1,or 3.2.
I'm currentlly using my old Yamaha RX V473 and am pleasantly surprised with it's performance with the R3's.
I considered quite a few options for AVR's and integrated amps but finally ordered the X4400H. It was a close call between that and Marantz 7012 but the X4400H seemed like a better value...Next I'm educating myself about whether or not an outboard 2 channel amp will help make the L/R front R3's really sing.
I'm hoping to get great sound for both music and movies, maybe 50/50 music/movies.