After a few months of research and piecemeal purchasing, I think I'm pretty set on my build. I've purchased most of the parts already - I'm pretty much just missing the GPU and CPU. I'm just looking for any advice or thoughts that you guys can give. This is my first build, and I was extremely ignorant prior to starting my research, so I'm sure I'm overlooking things.
One specific question I have is regarding the PSU. Obviously 500W is far from ideal for this build, but do you guys think it'll be sufficient? What problems might I encounter? Is it worth replacing? I am considering starting a new build (possibly Hackintosh) after I finish this one, so I'm not opposed to replacing the PSU or any other parts and then putting them towards the next build.
Also, though this will primarily be for gaming, I'm interested in dual-booting Windows 7 and OS X on this machine in the future (specifically when I get a second hard drive). I realize I'm opening a whole new can of worms here, but I'd still appreciate any comments you'd like to offer on this aspect of the build.
In terms of budget, I don't have any set overall limit - like I said, I'm buying it as I go without counting overall cost - but in general I don't want to enter the enthusiast areas where large price gains produce small performance gains (e.g., the 2500K for CPUs). I want the best parts that are still good values, essentially.
GPU: MSI R7850 Twin Frozr 2GD5/OC Radeon HD 7850 2GB http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Notes: Video cards in the LC13 that are over about 10ish inches require me to remove one of my hard drive cages, severely limiting the number of hard drives I'll be able to put in. I don't want to have to do that! Also, I would like to Crossfire or SLI in the future, but not right away.
PSU: Silverstone Strider Plus ST50F-P 500W Fully Modular* http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Notes: As mentioned above, this doesn't seem to be enough power for my video card. Also, I'm concerned with it's noise level. Any replacement recommendations would be appreciated!
RAM: Kingston HyperX Genesis XMP 6GB 1600MHz DDR3 3x2GB* http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Notes: I got these for free after rebate - I didn't shop around. They are triple-channel while my mobo is dual-channel. I can't seem to get a good answer on what exactly this means and what will happen if I use them anyways.