alrite, you have 2 options:
1. your current config is good enough for gaming apart from the VGA of course. given the rather insane amount of money youll have to pay right now for an i3 based system, i say stick with the current config, get a better GPU and add another 2GB of RAM to make it 4GB total. youll have a rig capable of gaming on 1080 easy.
2. go for the i3 upgrade. personally, with your budget, i wouldnt recommend it. DDR3 prices are insanely high right now and id even go as far as calling 1156 mobo prices to be a bit high at the moment. on the upside if you do go with the 2nd option, youll have shifted to the newer platform but it wouldnt make any difference at all, game-wise. since the performance youll get out of games with that GSO will be more or less the same as before.
what do you think?