Sony PS3 will disolve. It's a powerful system and all, but it just doesn't have anything that can compare to Xbox Live or the game selection. Graphics aren't everything, Wii proved that!
I suggest waiting, word on the street is the new Xbox 360 suppose to be coming out soon. Supposedly it's going to be a regular Xbox 360 but with upgrades. Along with the upgrades, project natal looks very promising too. I'm guessing the new Xbox 360 will have a blu-ray drive in it.
By the...
I suggest buying a home theater system from tiger direct or amazon. You can get ripped from any of the local retail stores, these major internet stores have the best prices. I suggest getting a onkyo receiver with a nice set of surround sound speakers from sony. Amazon has some great honest...
I think any standard VGA cable should work, can't see why it wouldn't. I bought a long VGA from the store I bought my receive and it worked perfectly. I did however bend back a prong on one male end and it caused malfunction in colors showing up on my screen. Fixed it and it worked perfectly...