Not sure how well a 9700 Pro would cope with Battlefield 2, but worth a try......if it's going to be used as a gaming machine, that'd be the first thing to upgrade.
Rest of the system is decent, for the price!
But yes, that CPU could probably do with some clocking once everything's installed and settled down!

My Athlon XP2600+ currently runs at 2083MHz (about 2.035GHz)