@ coret- Considering that you do all those things, then a quad core is a good purchase for you. Because I do a lot of things at once as well, I am also in the market for a quad core. Just a bit earlier today, for instance, my computer was slowed down to a near standstill as I overloaded its two cores. That doesn't happen often, but when it does, its very annoying. There are legitimate reasons to buy a quad core and I have no argument against those. For the moment, I just don't think Phenom is ready yet. The B3 stepping is supposed to cure its problems. I hope it does.
As to the TLB issue, I don't know how great a problem it is, other then AMD has admitted to it and has withheld shipment of higher clocked Phenoms until it is fixed. In a different thread (AMD giving away engineering samples for retail), Turpit speculated that there may be more problems than just the TLB for AMD to issue the stop shipment on the Barcelona variant and withhold the higher Phenoms. He also included the reasoning that if 98% of the people won't be affected, why the stop shipment? I don't know the answer to this, only see the effects.
For myself, next month I presently plan to buy a DFI 790FX board and a 5000+ BE for it. When the B3 stepping appears, if it is fixed properly, I'll buy one of those. ALternatively, if I see more good reviews involving the 9600 BE, I might give that a try instead of the 5000+ BE. I have a couple weeks to read reviews and think it over, so I'll be patient and let time show me the goods.