I've been looking at building a Gaming PC for a while now and I'm ready to pull the trigger. I'm looking to build a pc that will play Battlefield 3, Mass Effect series, Elder Scrolls V, etc. Here's a list of parts the I have come up with. Let me know what you think and what's parts to change.
I'd recommend the $59 650W XFX power supply over the $70 550W psu. http://www.newegg.com/Product/Product.aspx?Item=N82E168... , even the extra watts won't be needed at present, it is $11 cheaper and the psu can be reused in another build when upgrading graphics card etc. where the 100W might come in handy.
Or you can get a slightly slower 2TB Spinpoint for $80 (compared to your $160 2TB WD black HDD). The differences in all of these products are almost hypothetical here - A millisecond here or there, but if they are cheaper and faster, (F3 1TB is faster than all of the Western digital HDDs) or 1/2 the price and 0.1% slower (Spinpoint 2TB is ever so slightly slower than the 2TB WD black, but is have the price at $80, compared to your $160 HDD) then either pick the 1TB F3 or get 2 of them in RAID, or get a 2 TB f3, depending on what you need. http://www.newegg.com/Product/Product.aspx?Item=N82E168...
I don't know why u need such a large and expensive case, esp for a single card setup.
Look over the Lian Li range, much better quality and cooling, and some of them are very good looking with led lights like the HAF932, and some are cheaper too. If you are in love with the HAF series, consider a 922 or 912, unless u really want the haf 932 and are willing to front the cost of it, even to the detriment in quality/performance of other parts.
Graphics card: The GTX 570 is a great card, whats not so great is palit. EVGA is a leading provider of graphics cards, and http://www.newegg.com/Product/Product.aspx?Item=N82E168... this is a great superclocked card, 797MHZ (compared to your 800MHZ card), so 3MHZ less (which is nothing) and the card may be part of the step up program (check on this, its late here...) and is $310 compared to the palit @ $340. $30 saving AND you get a better company making the card. Plus the LIFETIME WARRANTY (Yes, warranties for GPU's are redundant for most gamers after 1-3 years, but if this systems going to last, extra warranty is great, and extra warranty never hurt noone, esp. if its cheaper to buy too). Note, the EVGA card is $360, but you get a $50 rebate card, and please use my link, there are 2 identical cards on newegg, but the other 2 have either a $40 rebate card or no rebate card, and the same starting price, so check before you buy!
in light of the savings made from getting cheaper mobo recommended by why_me ($100~ saved), better quality and cheaper PSU' ($60~ saved) and from the EVGA GTX 570 ($30 saved) and from the ram ($5 saved) and from the HDD ($30 to $80 saved if you get 2 x 1TB spinpoint f3, or 1x2TB spintpoint f4) and potentially $20 from the mouse (MX518 vs G500, your choice) , and potentially $~50 from a cheaper case.
Note, the bold is what you really must change - The mobo since you won't notice any disadvantage as you aren't SLing, the psu as its better quality and much cheaper than your choice, the gpu since better quality plus cheaper, ram cause its better quality, cheaper and a 2GB usb, and the HDD because better quality and cheaper.
The mouse/case is what i recommend you change unless you really want those products.
I make the savings around $230-350. This means you ought to get an SSD, esp. if you are getting a $2000 build.