Here is a pretty decent one:
http://pcpartpicker.com/p/FYzeI replaced the i7 with an i5, you won't notice any difference at all. I gave the system more storage, as well, 64Gb isn't enough space for barely anything so i changed the SSD to 128Gb and gave you a cheap 1TB hard drive. You should store most things on the hard drive, and perhaps only put your operating system (windows i assume?) and your favourite games on the SSD drive. Don't put minecraft on the SSD, it really wears them out due to how it saves.
I also upgraded your graphics card slightly, I changed it to an Amd 7870, but I downgraded your motherboard a bit to do this. If you have the money,go with your original motherboard, but I tried to keep the build at the same price as it was before.
If you need any more help, go to this site and post your build here, there are literally thousands of people who will help you:
http://www.reddit.com/r/buildapc
