IMHO the graphics card you have there is overkill for what you've said you wanted to do. You're heading in to the "everything on high mode" when gaming now. Not a bad thing of course
Nothing wrong with the build you've chosen. I'd go for something like this...
$917.93 Under $1000 and still a decent rig that will allow you to multi-task to your hearts content.
Unless you'll be flashing it to a 470, never get one.