Good looking stuff, I think you really oughtta get more storage in there game wise. AAA Games are taking up more and more space, a 1 TB 7200 RPM hard drive can run you $50-70 and will be good enough. SSD's are faster but not required.
Get a 650W PSU, 850 is unnecessarily high UNLESS you are going to SLI in the future.
I'd personally slim down the case budget but that's me. Or at that level I'd go slightly higher for a phanteks enthoo evolv, I like those. That's a personal thing.