Maximum PC

So this was my plan:

Budget Range: $1500 give or take


System Usage Home pc, gaming ( Fallout 3, Borderlands, maybe an mmo.

Parts to be reused:
keyboard,
mouse? (currently useing a microsoft intellipoint trackball. any suggestionsto replace it?) monitor- resolution is 1680X1050,
speakers- Logitech Z-5500
CASE- coolermaster cosmos full tower.

Country: USA - VB Va

Parts Preferences: Intel CPU, Full ATX motherboard, Have had an nvidia card for the past few computers but I'm open for everything else

Overclocking: don't plan on it
SLI or Crossfire: Crossfire or SLI depending on card- future

Monitor Resolution: Max Res: 1920 X 1080 (going to be using a HP - 23" Flat-Panel LED HD Monitor)

Additional Comments: I will have to get a copy of windows 7, A SSD for the os would be prefered but I'm not set on it. I'm a casual gamer but I want it to look good when I play.

This was the recommendation:
http://pcpartpicker.com/p/5MCV

with the release of the new gtx680 and ivy bridge What changes would you make?