My trusty MX-850 finally bit the dust and I'm looking to replace it. I am leaning toward a 780 since it's pretty similar (but I heard much improved). I've been reading about IP/serial type setups using iDevices but that seems too expensive and time consuming for a father of 3 kids under 6 :). Anybody have any thoughts on my best option? I have a directv genie (HR-34 700), Samsung LED TV, Denon AVR-2112CI, Apple TV and a Sony blu-Ray. Budget is $500 or less.