I have 1000$ bucks to put to a good build, but am wondering what is the best bang for the buck build I can get with 1000$. I only want to have one GPU and not SLI or crossfire. I am currently running with a AMD FX 6300 paired with a 280x and I want to get something more powerful. This set up can already play most things well, but I'll like to spurge a little on an upgrade. I'll be giving my old PC to my little sister. Also know that 1000$ isn't the hard limit, just the limit I want to spend. Should I wait until the R9 3xx series come out before doing anything?