So I picked up a 591 and paired it with a Denon 602ci video processor that AVS is selling for a steal (IMO). Have the source devices (cable box, Oppo BD-80, JVC D-VHS, PS3, XBOX 360, HTPC) wired to the VP and then hdmi out on the VP to the 591 (HDMI1 in) and then 591 hdmi out to the tv (Pioneer 111fd plasma).
So for less than $1000 I feel I have an audio/video processing setup comparable to rigs costing thousands more so am a happy camper for the most part.
My only major complaint is the restriction on input assignment that the 591 (and most lower end AVRs I have noticed) impose: Not being able to assign the HDMI1 input to more than one "input" (TV, DVD, BD, etc.) the 591 offers... such a lame restriction... I'm no hardware engineer but can't see any technical reason for this restriction. This would allow me to maintain per-input audio settings (by assigning the same HDMI input to more than one "input" on the 591) and also allow for the per-input video settings (on the 602ci) that I currently enjoy.
Oh well, since I feel the per-input video settings are more important than the per-input audio settings I will leave it set up this way.
But for those of you looking for a nice audio/video setup for less than a grand I sure would recommend this pair.