You don't need an aftermarket CPU cooler unless you are going to run a K chip overclocked.
Save yourself the hassle of an old Z68 compatibility issue potential (unlikely but you never know). Get yourself a less expensive B75 or H77 or Z75 board.
You will pay for an 80+ Gold PSU whether you buy one or not. I'd personally want the advantages of the higher efficiency (lower waste heat, longer part life, typically better warranty as a result) and just pay the extra few bucks up front. Over the life of the machine the higher efficiency will pay for the difference.
For 1x6-pin single GPU systems, The SeaSonic SSR-360GP is a great choice at $60-70 shipped. For 2x6-pin single GPU systems, the Rosewill Capstone 450W is the next logical step at $70 also. Both have 5 year warranties and more than enough umpf for most systems. FYI, the 450W capstone has the same amperage available on the 12V rail as the 550W Antec BP 550W, so there is nothing to worry about dropping down to the lower rated PSU here. Modern PSU architecture is "smarter" for the way that modern computers draw power [primarily from the 12V rail].
Use this combo and it's like paying $5 for your optical drive!MOBO/RAM
This micro-ATX board is perfect for a compact little gaming rig that won't be OCed. Currently, it comes with a free 2x4GB memory kit that is perfect for this build.GPU
2GB version for $185, not bad. Typical "limited lifetime" warranty.HD
This single platter 1TB drive is going to be much faster than the 500GB drives that have been considered. Higher platter density translates to higher transfer rates, lower seek times, etc. This is well worth the extra few bucks.PSU
$60 on amazon with free shipping (out of stock at the moment but seems like they are expecting more soon enough?) For this system, this is actually a very well matched PSU that will give you both remarkably good idle efficiency and load efficiency. FYI: without OCing, the build will never draw more than ~250W from the PSU, so this little unit actually has plenty of overhead for this build.Case
This is a really nice micro-ATX case. Read the reviews, watch the videos, take a look at the insides. It's a genius little case that has a very mature appearance to it. ~$40 on amazon.
That's $647 shipped
, no MIRs
to monkey with. That's $29 less than Raghu's build (I wouldn't count a $10 MIR in a final cost since that isn't worth the time to fill out and deal with). Comes with a higher efficiency PSU with a longer warranty, a nicer case that is more appropriate for a micro-ATX build, a faster CPU, a faster bigger HD with 4X the cache, and a MOBO with 4xRAM slots rather than 2.Edited by mdocod - 10/17/12 at 7:09am