WRONG, your HDTV is likely 1080p native resolution, so your HDTV will say it is running 1080p but in reality it will only output 1080i

VGA is Standard Definition from what I understand, Now DVI will give you HD and a DVI-to-HDMI converter is about 2-4 bones.

I would say that if you have the scratch to buy a 50" plasma then you should probably drop the 199.99 for a 4 GB Xbox 360 Slim. You can buy a 20GB-250GB Hard drive for the console on amazon or ebay and save alot of money, on the other hand you can try to buy a 250 GB Xbox 360 S, either way thats what you should do so you can enjoy 1080p FullHD.