Yah I am in the same boat and in fact that boat is gonna be jammed packed full of people when the July price drops come along. The quad core or not quad core issue will rage on for a while. Over all it sounds like a no-brainer -- the "future" seems to be the more cores the better right? For now with what technology is, unless a revolutionary way comes along to do with one core what currently runs faster/better/smoother with two? I don?t see this changing and although I would presume the diminishing return thing comes into play for 4 or 8 cores etc, I still think it holds true.
As others said if you are simply concerned with what will OC more and run games faster I would go 100% for the e6850. This will be one sweet chip I hope. At this point these CPU?s are already so powerful and will run efficiently and will be able to make up any shortcomings to a quadcore by simply Oci?ng them higher than a quad core can. As for games I really don?t care what optimizations the developers will make, I cannot see a VAST improvement with a higher amount of cores. I am just praying of software (and games) to really and fully take advantage of multiple cores and as others said you would think software developers would be jumping all over this -- heck when dual cores trickle down to ultra low budget computers and laptops you would think all new software would be developed from the ground up with this in mind. However in the past I?ve always loved my dual core mainly for what ?else? it can do in the background or simultaneously while I game or work etc not necessarily that I could do one thing faster.
For my work I spend countless amount of time decoding and encoding video. Also I spend an absorbent amount of time compressing and uncompressing (using winrar etc) of massive data or video files for distribution for work. I originally used an older Intel P4 and then went to an AMD X2-4800+, which I still use and love. I was impressed to see the performance difference between the two of them in my work and I attributed it all to the Dual core phenomenon, However when I switched to an Intel C2D e6600 I was SHOCKED to see the difference in performance gains with the C2D (oc'ed of course). I mean I always thought the X2 was fast and this comparison is from a dual core to a dual core! I would love to see what a quad core would do for me but will I see the same type of tangible improvement?? I really hope so.
If a quad core shaves 5 or 6 minutes off a currently 35-40 minute job... sign me up.