I can do OS install with USB BluRay, right?
Sure, should work the same as any USB thing you boot from.
I can do OS install with USB BluRay, right?
You'll probably want to do a bit of research on dual monitor gaming depending on how you want to do it.
Games that natively support dual monitors in a smart fashion are exceptionally rare (Supreme Commander is the only one I can think of) - for just spanning games across you'll be using either eyefinity, or whatever the nvidia thing is, both of which I know pretty much nothing about.
I've been retooling to an intel chipset version that can be seen here:
http://pcpartpicker.com/p/zBbJ
Any input would be welcome.
Looks mostly fine, 1TB drives are a bad $/GB. I wouldn't get any computers with internal optical drives, just get a USB blu-ray drive for the same price and you can share it between any of your computers.
Also I hate legacy ports on motherboards, if it were me I'd just figure out a serial -> usb thing, which you'll be able to keep if you still need it when you can't get mobos with serial ports anymore.
I dunno how anybody gets by with less than 16GB of RAM. I'm sitting at 12GB used as I type this, and I don't have anything particularly demanding open. (3.7GB for kernel, 1.6GB for Photoshop, 1GB for Firefox, 1GB for Virtualbox, everything else below 200MB). If I want to open anything really big I'd have to close a bunch of stuff.
PSU is probably bigger than needed, I generally look at 650W models as baseline for rigs in that range. AMD processor does take more power though.
Mac OS, 3.7GB for the kernel was was unusually high, 1-2GB is more standard. I've found Mac OS to be somewhat more demanding on RAM than Windows.
I don't actually let my hatred of legacy ports affect my recommendations for other people, it adds like $100 to the motherboard price to find one without PS/2 ports, which I can't justify to others.