Would this be good build?

this build can handle pretty much anything at decent resolutions. It won't do anything ridiculous (multiple displays) but it'll take on 1920x1080 in just about any game; rpgs should be no problem.

Have you found a case and PSU yet?

I would recommend going with this processor and an LGA 1155 board:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I havnt found a case and PSU yet, have any suggestions?

and what would be a good cheap lga 1155 motherboard?

I just got this case in today:

http://www.walmart.com/ip/NZXT-Gamma-Classic-Series-ATX...

I bought it because it was cheap and I liked the simple design without all the excessive lights. I don't have all the parts for my current build so I haven't tested it.
It is limited to ten inch graphics cards though. I am using it for an HTPC/gaming machine.

As for PSU everyone seems to recommend Corsair or any top end brand. For watts and amps (sum across +12v rails) you will want to base these on what components you choose and what you might want to add in the future.

I don't personally own a 1155 yet (would like to). Hopefully an actual owner can give you a recommendation on which board to get. I'm 90% sure most would get the 2500K if they were spending over 200 on a processor. The old one still got an honorable mention in this article:

http://www.tomshardware.com/reviews/best-gaming-cpu-cor...

I forgot to add that one of the HD 5850's on newegg is a lot cheaper than the one you have selected for a similar performance level. Here is the link:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I'd go with a larger case for the same price than the NZXT. But it's a decent case. I'll give more suggestions once the OP fills that form out.

This topic has been moved from the section CPU & Components to section Systems by Mousemonkey

Best answer selected by tdhhs94.