Ok, this is my first build and I am not completely positive on what I'm doing. I don't want to spend more than 800 dollars. I would look to be able to play some games, but I'm not a hardcore gamer. I would love to play Diablo 3. I am currently trying to make sure everything is compatible and that I've haven't made any stupid decisions in picking parts. I am hoping to buy my parts within a week and I am hoping to get them all off Newegg.
You can do a lot better with your current budget of $800. [Btw, you forgot to include a Power Supply in your list]
Firstly, you'll want to stay away from AMD's new lineup of bulldozer CPU [Sure, it has 8 physical cores but in practice, the i5 2500k performs better 90% of the time]
-Changed your AMD themed CPU/mobo to Intel's i5 2500k - much better performance and offers the option of overclocking in the future if required/desired [this is optional]
-Added Aftermarket cooler for CPU; keeping your CPU cooler will extend it's hardware lifetime and better for your hardware in general [It's also quieter than the stock cooler]
-Changed your 128GB Crucial SSD to a 500GB WD Blue HD [Not sure if you have a available HD lying around? and a 128GB SSD isn't a good idea for your main internal storage device; since a standard windows i7 install alone will take up 25-30GB, Diablo 3 is another 9GB, leaving behind [90GB] too little storage space for comfort] Your better off getting a 64GB Crucial SSD and use it as your boot drive [i.e your OS, 1-2 of your favorite games and some apps such as Skype, MSN, Mumble, internet browser, etc etc]
Everything else; other games, movies, music, my little pony wallpapers!?!?!?[j/k ;P], etc can go on your Hard Drive.
***Note: Don't forget to include a 64GB Crucial SSD if you want it for your boot drive. [This is optional since SSDs aren't mandatory]
-Changed 16GB Ram kit [Latency 9] to 8GB Ram Kit [Latency 7] [16GB of ram is overkill; since 8GB is more than enough for gaming and everyday use. On a side note; from reviews and benchmarks, it's been shown that Ram at 1600Mhz w/ Latency 7 is the sweet spot]
-Changed from the 550ti to a 6870 - offfers much better performance for the same price! Benchmark comparison below!