Originally Posted by woot7800GT
I'm just wondering why the Quad is a little cheaper than the Core 2 Duo.
Because it's all marketing. The E6850 is new generation (1333Mhz FSB). The Q6600 is basically 2x E6600's in one package. The E6600 is older generation (1066Mhz FSB). When the new generation came out, Intel dropped prices on the Q6600's and if I'm not mistaken many others from the old gen Core 2's.
Whether or not the quad is a good deal for you, depends entirely upon what you plan to use your computer for. Gaming? No big upgrade in performance from Duo to Quad. Simple apps (Word, Internet, etc.)? No big difference. Video editting? Big difference. 3D rendering? Big difference.
If you plan to keep this computer for more than 2 years, it's probably worth it to go with the quad core.