Splenyi, I am disappointed of your comments this time.

Why recommend him a Haswell when he can use his existing setup to upgrade more cheap and resonably?! Be more situative please.
If he already says a 3570k is too expensive there is additionally no way. As I said I would check Rome 2 performance and wait probably for the next generation of AMD in October instead to rush an upgrade. His GPU is really fast enough at the moment.
The 3470 would be a better pick if you want to upgrade, but I would be unsure to do it right now. The performance plus will not be reasonable to your expenses to be honest!