Noob here looking to rebuild my computer that my cousin built me 6 years ago. I use my computer for internet, photo editing and gaming (just getting into the gaming part). My old mobo was an Asus p5nsli and I was recently given an ASUS GeForce GTX 660 DirectCU II GPU from a friend who is upgrading so I would like to kind of build around that. Can probably reuse my monitor, power supply (500w) and tower. Looking to get an Asus mobo, new CPU (probably Intel Core i5-3570K) and an SSD and use my old hard drive for storage. I also have a 1.5T external hard drive. I've been looking at mobos on Asus home page and don't really understand the difference between 1.) the different Intel sockets such as 2011, 1366, 1156, 1155, etc. and 2.) the subcategories under the sockets such as Z77 and Z68. Any help/advice would be great. My budget for the mobo, CPU and SSD is around $500 give or take $100. Thanks.