I'm selling my Phenom 955BE 3.20GHZ, GB Ma-770T-UD3 rev1.0 and 4gbs of corsair xms3 for 125$ and I'm able to get from my local "ebay" here in romania an i5 4670k, an ASUS H87M-pro and 4gigs of ram for 370$ or with 8gigs for around 400$. Is this a good upgrade for the next 4 years? My gpu is currently an 7850 2GB and I plan to change it with an r9 290 in 2015. And also is the price good?