Thanks for everyones input, I'm starting to see a trend...
My concern in terms of "response time" on LCD related to ghosting on fast moving objects.
I don't care much for broadcast TV itself, but I was planing on getting and HD DSTV decoder, and using HDMI or Component. If my understading is correct, DSTV braodact is 720p that TV can then upscale?
In terms of blueray and Xbox360, I'll go with a reasonable quality HDMI cable.
I'm quite happy with my "Home Theatre" situation, and older Marantz 6.1 amp, with Paradigm Reference Studio 40 v4's for mains. Centre is B&W LCR 600, and to B&W 602 S2's for the rear and Yamaha Sub. 602's were migrated to the back when I purchased the Paradigm's. Not exactly matched, but I'm happy with it at this stage. Result of this, is that I cant see to much point upgrading my receiver.
The feeling I get here is that most ppl recomend going down the plasma route. And yes, finding someone unbiased and actually willing to help is a little tricky.....