I just bought components for $1650 what do you think?

What is your intended use for this? 12 GB of RAM is entirely too much for a gaming rig (which this seems to be given the 5850?). Motherboard is great. Do you plan on crossfiring or overclocking in the future? If so, 650 Watts might be cutting it too close. Seasonic is an excellent psu manufacturer, and that unit can probably put out more than 650, but you could've easily spent $140 on a PSU of more appropriate wattage without sacrificing quality. Like the Corsair 850TX or 750HX.

I'm not familiar with which controller technology your SSD uses, but the sandforce controllers in the OCZ Vertex 2 drives are considered the best right now. Something like this http://www.newegg.com/Product/Product.aspx?Item=N82E168...

would be much faster than the one you have selected.

Also, I'd consider a gtx 470 instead of the 5850. Should be pretty much the same price, but perform better. As I understand, after the most recent NVIDIA driver release, the gtx 470 is only 5 - 10% slower than the 5870 in most games. And it scales better in SLI than 2 5850s do in Crossfire. You'll also get all of the proprietary nvidia technogies like Physx, 3D surround, CUDA, etc. Icing on the cake.