The HDD is Still NOT Correct. You Chose SAS HDDs. They have to be SATA !!
$500 will buy you best Video Graphics Card (More than you need).
Your monitor needs to be IPS for true color and that will be a bit more expensive than run of the mill monitors.
All the 1155 MBs support Dual Video - (1) card @ x16 OR (2) Cards @ x8
To get (2) Cards @ x16, you would have to move up to 2011 MB which becomes very expensive very Fast !!!!
Ask Moderator for my E-mail address. :)