Well if ya shying away from IB because it runs hotter than HW, then you shud get SB cause IB runs way hotter than SB.
IB and SB are over .... end-of-life products. While I certainly see no reason to go out and upgrade from SB/IB to HW, investing in out of production parts certainly puts a damper on system life and upgrade ability
You went w/ all top end manufacturers except for the MoBo.....
$300 - Asus Maximus VI Formula
http://www.newegg.com/Product/Product.aspx?Item=N82E16813132038
$210 Asus Maximus VI Hero
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131989
$185 MSI Z87-GD65
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130692
http://pcmonitors.info/others/benq-xl2411t-vs-asus-vg248qe
Thats a comparison of the Asus and BenQ2411 (both 144 Hz) ... Asus came out on top
Dunno where ya can buy it but there's a WB for the Asus GFX card (WB - EK-FC780 GTX DCII - Nickel / Backplate - EK-FC780 GTX DCII Backplate
http://www.ekwb.com/news/387/19/New-water-block-for-ASUS-DC2-series-GeForce-GTX-780-released/
Bug case for just one GFX card ..... if ya thinking of adding one later.... will need bigger than 850 watter.
500GB is teeny by todays standards ... wud suggest $136 7200.14 - $135 for 3TB
http://www.tomshardware.com/reviews/desktop-hdd.15-st4000dm000-4tb,3494-3.html
if ya wanna save money....new Enthoo case is $100 less and will easily fit ya components
http://phanteks.com/#&panel1-1&panel2-1
If