Thanks to all for the input. I got a LOT of smiles out of the 6600K and wanted to check on just a GPU upgrade but don't want to be penny wise and pound foolish at this point.
I need some ideas for those in the know.
GTX 970
i5-6600K
16 RAM
Contemplating whole new system but would prefer simple gpu upgrade if reasonable cost/benefit ratio with budget <$500
Thank you