Will E5xxx and HD5770 suffice 2 years if i max games at 1280 x 720 resolution , remember all games!!Remember 35+FPS!
I just had a look at the price of E6300 and E5xxx at Neweggs and E6300 is only $10 more than E5300, so I would suggest E6300 over E5xxx
E6300@3.5GHz + HD4890/HD5770 should be sufficient for MOST games at 1280x700 in 2 years based on the article below.
p.s. the Min resolution used in the article is 1680x1050Cysis, the most demanding game now!
By the way, I will suggest E8400 instead if your m/b is not very good, such as the G31 series. Be sure that you have at least a p45 Asus/Gigabyte board if you want to OC it to 3.5GHz.