OCZ Vertex 7 256GB
I assume this is the Vertex 4? Because there's no such thing as a Vertex 7.
Also, you do not need an 850W PSU unless you're running crossfire or SLI. A good 550W unit is plenty for any build with a single video card.
Yes, it's Vertex 4, mistype
Shouldn't I buy 850W so it will last for few builds ?
btw, I'm coming from Dual Core E6750