What are you planing to do with your machine?
I would be leaning towards the C2D setup, though.
The Phenoms are not bad but very under powered compared to much of Intel's offerings.
Games, rendering/encoding - everyday brings something new to my interest!
If you are only doing number crunching then either would be a great upgrade, however, if you are gaming you wont notice diddly difference as most games are GPU dependant.
By the way that mobo doesnt support AMD quadshttp://support.asus.com/cpusupport/cpusupport.aspx?SLanguage=en-us
Hot damn.. didn't know that was even there hehehe
Ok, well I guess my mobo is ready for a replacement.. I'm still using a 7300 GS sooooo.. hmm. Perhaps I spend $230 on an X2 6000 then save the rest for a decent mainboard that won't go ut of style too quickly and go from there.
Money doesn't flow through my bank account like water.. Kinda like sand