No worries and glad it's sorted. In regard to GPUs, I haven't a clue when it comes to GPUs. I usually just go with NVIDIA as I use Linux and their Linux drivers give less hassle and better performance on Linux. I'm still using a 670 at the minute because 1) it works and 2) I don't play very much on Linux that would stress it like a triple A title on Windows. Source engine is about as complex as I would play (TF2 etcetera).
Just make a new thread in the GPU sub forum and you'll get great advice.