You're making hard for me to NOT buy a PS3.
As an aside, there usually is not a discount for the PS3.
Having said that, when I bought my PS3 a couple of years ago, I stumbled across a deal on the Sony site. At that time, the deal worked like this - Sign up for a Sony Visa card, instant approval, use it buy something on their site worth $299 or more, get a $100 credit on that purchase (shows up on your first bill). Plus you got free shipping.
I have seen the deal since then up to $150 for a $399 purchase,but right now
its $50 credit on a $249 purchase, plus free shipping.