Uh bro what kind of input do you need?!?!?! I mean you seem to have it down.
Other than I wouldn't buy that graphics card. You seem to have a very good setup going here but if you're going for ATI, buy the HD 3870 or possibly the HD 3870X2. They're both very good ATI brand cards.
That's my two cents worth. Hope its worth that much to you!!!
If PS3 is your main use- then you don't need a super duper video card. I would however go with at least a 3850 due to the fact that PS CS3 started a trend that will continue in that some filters are going to start using the GPU to offload from the CPU.
8GB of RAM- good thing to have for PS3.
Do you really need dual LAN connectors? If not you don't really need this board- get the P5E instead and save some money.
What kind of PSU are you running? You don't really need DDR2-1066 RAM either. DDR2-800 is fine unless you are trying to overclock the hell out of this thing.