If you don't mind going a bit over budget (Includes Windows 10 Pro)
http://pcpartpicker.com/p/7mc9f7
Total: $1543.38 without Mail-in Rebates
Total: $1533.38 with Mail-in Rebates

To stay in budget (Includes Windows 10 Pro)
http://pcpartpicker.com/p/FCX46h
Total: $1483.38 without Mail-in Rebates
Total: $1478.38 with Mail-in Rebates

If you want to ramp down the system (Includes Windows 10 Pro)
http://pcpartpicker.com/p/BMk2pg
Total: $1128.38 without Mail-in Rebates
Total: $1103.38 with Mail-in Rebates