Apparently Stranglehold is junk. I've never seen it, just read the 11 newegg reviews.
But never mind that. The X2 4800+ you found is a little better value for the buck than mine even without the game. Go for it.
I asked about overclocking because Intel's CPUs are better at it these days. That is, if you intend to overclock you can get better value with an Intel E2180 and a GA-P35-DS3L or something like that. But then you need to spend some money on a good cooler too for the Intel to OC high enough.