i got dual hd5750's, runs crysis at extreme settings (crossfire sux on crysis, renaming crysis2.exe to a different game gets me really good frame rates, 40 at the weakest moments, 60+ most of the time)
get a good monitor n speakers, most important, grafix card looks good (make sure when ur pc gets old you'll have room to crossfire), also get a mouse with lotsa buttons, u can just get a lame cheap keyboard, card readers can REALLY come in handy sometimes, and gamepads are fun to use.
ur case looks easy to use but it may get hot since it only has 3 small fans and it's only a mid tower, and it doesnt really have that WOW factor, try this one http://www.newegg.com/Product/Product.aspx?Item=N82E16811103033 full tower, same red color and looks absolutely BEAST. i would also suggest u get a dvd burner (you never know) for only 4 bucks more than ur current drive.
other than that it looks great, so i hope this helps
