Actually, if I were building a computer and I wanted it to be stable and great for gaming for, say, the next year, I would buy an AMD64 system. And not one of the new, fancy AM2 rigs, but rather the 939 pin version. Prices will be dropping, performance is only a couple of percentage points off the new platform, etc. And I certainly wouldn't wait for Conroe, which will need to get through its birthing pains before I would want to approach it.

So yeah. If you're building a rig soonish, I'd say go with AMD64. And for Pete's sake, don't buy the FX60. Grab an Opteron with one meg per core and overclock that sucker.