I decided to finally build a computer for gaming. I have a couple choices to make and I'm not real sure what to go with I was hoping that you guys could give me some help on choosing some of the components. A little background information. I play a lot of WOW and I would like to be able to play newer games as they come out. I currently have a 24 inch monitor so I will have the resolution turned up. I'm trying to do this semi-cheap to keep my wife happy but I want it to last me awhile.
First, what's your budget? We really can't help without that. Refer to the link in my signature to give us all kinds of useful info that helps us give good advice.
Mobo: That's a good board, but you shouldn't base any decision off Newegg reviews. The reviewers are often morons who shouldn't be allowed around any kind of tech. As far as the one you choose, the only thing that is a little off is that it has onboard video, which you won't use, and it has a second PCIe 2.0 slot operating at only x4. This doesn't matter if you're only going to use 1 GPU with this build, but if you ever want to Crossfire, it might not be as good. A good board I like to recommend is a little more expensive ($20 more before rebate, $10 more after): ASUS M4A79XTD EVO.
GPU: DX 11 is a big question right now. Currently, nothing really uses it, but to be future proof you'll need it. I like to recommend getting the 5770, mainly because most people making this decision (you included) won't actually need that much power. I'm also a firm believer that you need to future proof anywhere that's possible.
RAM: Both of those are expensive, and not that good. I recommend G.Skill Eco 1333 mhz CAS Latency 7 sticks. They're $98, and are very fast low voltage sticks. They'll perform as good as the two you choose, and save you a bit on your power bill.
PSU: Both of those are excellent choices. I'd go with the OCZ just for the cheaper price after rebate.
If I have gained any understanding of newegg after not being able to use them myself, then the OCZ RAM you linked is the better of the two, and if you can be bothered to go after the rebate, is cheaper than the one MadAdmiral linked, supposed at $82 vs $98. So you will have to weigh whether power saving is important to you and whether you can be bothered to chase rebates. Agree about the PSU.
The 4890 wins now in terms of performance, but 5770s will grow in performance and if you had 2 of them then you would not be complaining about their performance in games. So getting a mobo such as MadA's suggestion would allow you to add one when you feel you need to.