They don't oc nearly as well though.
LOL, yeah, but that has to do with non-existent headroom, not the IMC. Even the many of the BE's with unlocked multipliers don't OC very far.
I'm look forward to Nehalem. I've been holding out on my S939 Opty 175 for a long time now. I think my next system will be an Nahalem, unless AMD can get its act together.