Switch the RAM to the Mushkin Enahnced Redline 3x2 GB 1600 mhz CAS Latency 6
for $230 after rebate. It's faster than those Corsair sticks, and would be much better for overclocking.
Ditch the psuedo water cooling. It's not as good as air and it's a lot more expensive than the qualiy budget ones. Get either Coolermaster Hyper 212 Plus
for $35 or Prolimatech Megahalems Rev.B
with 2 fans for about $85.
Switch the PSU for an 80+ Gold unit: OCZ Z Series 850W 80+ Gold
for $200. It will produce a lot less heat.
With those changes, I put your price at about $2,700.