Sooo. anyways, sorry for that, we're not all like that, not all of us bite, well, not much anyways, but I digress. Some people forget that a forum is just another source for doing research with a wider sample size.
As for what you want, please state your budget, as it looks right now, it seems almost unlimited and you'll be running it on a 32" 1080p tv I presume?
At 1920x1080, take a look at this
http://www23.tomshardware.com/graphics_2007.html
and this
http://www23.tomshardware.com/graphics_sli2007.html
It'll list most of the cards available as well as the framerates that they get in certain configs.
I'd say a SLIed pair of8800GTS(320mb, though 640mb would be nice) would give you buttery smooth framerates while a SLIed pair of 8800GT will give pretty damn acceptable and pretty much smooth framerates at 1920x1080i in most games, at varying grades of AA and at the highest quality, but I'd bet most games would get you 2-4xaa
Slied 9600GT would also be a great value, not necessarily as fast as the 8800gt sli nor the 8800gts sli, but for the price it's great.
As for ATI, 1x 3870x2 will do well if you don't run everything at max detail levels, maybe a high instead of max here and there and no AA. I cant recommend 4x Crossfire or even 3x(and neither will I recommend 3x SLI) yet since the drivers aren't mature yet and it doesn't always work all too well.
As far as value goes, the GPU market is really pretty linear until you get up to the price of the 8800GTX and 8800Ultra which cost much more per performance gained.
Please note that my opinions tend to be very subjective and I am very bothered by lowered fps, more than the average user and you could probably get away with slightly less and still perceive gameplay as completely smooth. I'm sure most people will say 2x 8800gts at 1920x1080 is overkill but if your budget will fit around it...
As for video editing, that's mostly CPU based and as you can see,
http://www23.tomshardware.com/...6&model2=882&chart=432
The more mhz you can afford and the more cores the better. Video encoding is one of those things that end up scaling well with more than 2 cores. Not many programs take advantage of quad core, yet but video editing is one of them. In most video encoding applications, Quad core 2.4ghz will beat out even a dual core 3.166ghz by quite a margin.