hard to say, but probably. Bulldozer was a disappointment. Don't buy an FX chip and mate it was an AM3 board. They are different socket types, although they are compatible.
will it be worth waiting for the piledriver series ?
Probably not with your budget
Stick with the PhII 965BE, with a Piledriver upgrade in a year or so if you feel the need. The *new price* smell will have worn off Piledriver by then as Steamroller will be coming to market.