Here an old pro's and con's list i made back in sept. (has core i5 as well)
"Here's some pros and cons to each CPU series.
Will get the job done for most to all programs.
Runs cooler than the I7 9xx's
Can run faster 1333 MHZ ram than the I7 9xx's.
No triple channel memory
Doesn't have full dual 16x bandwidth for 2 video cards.
Will not be upgradable with 6+ core cpus.
(pretty much the same as i5's)
Can be cheaper than the 9xx's (depending on locations and store)
Triple channel memory
full Dual 16X video bandwidth.
upgrade option down the road to the Core i9 when you need 6 cores
Can be expensive. (depeding on location and store)
can be very hot if not in a well ventilated case.
Can only run 1066 MHz ram unless over clock to fully use cheaper 1333 MHz.
not as powerful turbo as the i5 and i7 8xx's cpus. "
Im not thinking about going with the Coire7 im going for a cheaper cpu, Thinking about the Core i5 with MSI P55 80GD seems nice to overclock with, and 2x2gb ddr3 1600mhz pc 12800 and my ati 4870, and upgrading to crossfire later, Corsair 850w and the CM HAF 932.
But when will the Core i9 come out, and whats the price of it? and for gaming will 6 cores work well??
And the Core i5 seems nice to Overclock, have not seen any overclocking with the Core i7 860? does it oc well too?
I had the pleasure working with 2 different I7 860... Both equipped with gigabyte P55 UD2 mb, 4gb corsair dominator & ati 5850. One was with Xiggy Dark Knight & other with Corsair h50. One with air cooling could reach 4.2Ghz and one with H50 could only reach 4.1Ghz stable. I guess one with Xiggy was a lucky chip.