Joining PC Gaming 800-900$

Hello Everyone, I am finally able to ditch other means of gaming and join this community and all my friends in the world of PC Gaming. I have a budget between 800-850usd, possibly 900. I have created a list of parts for all to view/comment on/improve.

http://pcpartpicker.com/p/2hUpm

 

As you can see this build is quite under budget, but as I cannot find a r9 280x, I have chosen a 7870 which puts the build under budget. Hopefully I can find one soon, but will probably just wait until I can find one. I'm excited to join the PC community of gamers and would like to do it with as good of a machine as I can build with my budget and that is where I need your help, Thanks.

http://pcpartpicker.com/p/2hVJ4

@OP's build:

RAM is a bit on the slow side, and is expensive for the performance.  Get this one instead:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231455&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=

That 7870 is expensive ._.  Find an R9 270, as it's very similar in performance to the HD 7870.

500W is enough for this build.  You can get a lower wattage PSU if you would like to.

Alright, I will look at these changes, thanks.