I'd read that local dimming can create 'grey boxes' around bright objects, so wasnt so convinved by this. The blacks look very good on the 7000 anyway (compared to my 5 year old Sony LCD anyway). Does the 8000 offer anything else other than local dimming over the 7000?
PS3, Apple TV etc does all the internet stuff, so really its the picture quality that is important for Blu-Ray and PS3 (3D) gaming.