A second suggestion to actually stay closer to budget and include a sub
$199.99x2 2 Polk Floorstanding Speaker Monitor 50 (I use these as my fronts and love them)
$129.99x2 2 Polk Bookshelf Speakers M10
$179.99 1 Polk Center Channel Speaker CS1
$159.99 1 Boston Acoustics 8" Subwoofer XB2
$199.99
$129.99
$179.99
$159.99
--------
$999.94
Its under a thousand
You could also replace the fronts with M20's and save $140