PCPartPicker part list:
http://pcpartpicker.com/p/ruca
Price breakdown by merchant: http://pcpartpicker.com/p/ruca/by_merchant/
Benchmarks: http://pcpartpicker.com/p/ruca/benchmarks/
CPU: Intel Core i7-3770K 3.5GHz Quad-Core Processor ($319.99 @ Newegg)
CPU Cooler: Thermaltake Water 2.0 Performer 81.3 CFM Liquid CPU Cooler ($66.99 @ Newegg)
Motherboard: Asus P8Z77-V PRO ATX LGA1155 Motherboard ($208.49 @ Newegg)
Memory: G.Skill Sniper Gaming Series 16GB (2 x 8GB) DDR3-1600 Memory ($64.99 @ Newegg)
Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($109.99 @ Newegg)
Video Card: Gigabyte GeForce GTX 660 Ti 2GB Video Card ($269.99 @ Newegg)
Case: Corsair 500R White ATX Mid Tower Case ($109.99 @ Newegg)
Power Supply: Corsair Enthusiast 650W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($69.99 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($99.99 @ Newegg)
Total: $1280.41
(Prices include shipping, taxes, and discounts when available.)
I just put the i7 and a watercooler for price comparison, i doubt the watercooler that hp has is as good as this one, it has plenty usb 3.0 ports and sata ports, wifi, sli/crossfire, 660ti which is much better than the 7770, and a case i doubt the hp one is better and psu the same thing, total : less than that (and that is newegg only, if with other sites for parts you can get a 670 gtx.)