Well, I had just a quick spec build up from my local computer shop (www.atcomputer.com.au) and the prices match up as following: (remember these are in AUD).
INTEL CORE 2 DUO E6400 CPU / 2.13GHZ / 2MB CACHE / 1066FSB =$350
INTEL CORE 2 DUO E6600 CPU / 2.40GHZ / 4MB CACHE / 1066FSB
=$480
****! that 4mb cache one looks so tempting and so good... shame about the price... $480AUD
So a cpu with a 2mb cache opposed to that of a 512kb cache, running on the same amount of ghz, will you notice a significant performance increase?
Also just another quick question while im here, If I buy an X800GTO 256mb/256bit card, would it bottleneck my current system (in my sig, so before upgrading).
**EDIT** Sorry also, what are the temps like for the Core Duo Processors? Enough room for overclocking?