if wanting to go with or stay with AMD then with an AM3+ motherboard stay with a 965BE or 980BE.
do not go for the FX-Bulldozer chips.....
the Phenom II's might still cost a few dollars more but it's worth it.
Ok... I can't really find these phenoms in Serbia anymore, so they probably aren't an option ( and they're also more expensive than fx-4100 ). Is i3 ok for gaming in 2012 ( after which i'll upgrade )?