About to order parts.

looks good - here's what i'd recommend to change..

motherboard:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
- GIGABYTE GA-Z68XP-UD3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0: $140

or this one:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
- GIGABYTE GA-Z68X-UD3H-B3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0: $150

they're both GEN3 boards, and also have the front USB3.0 connector (unlike the P8Z68-V LX)

case:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
- Antec Three Hundred Two Black Steel ATX Mid Tower Computer Case with Upgraded 2 x USB 3.0: $70

better build quality than Rosewill

PSU - your choice is good, but you could also no prob go down to 550w if you wanted.. and this one is modular too:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
- Antec BP550 Plus 550W Continuous Power ATX12V V2.2 80 PLUS Certified Modular: $65

I would keep everything you have. Wouldnt change a thing.