Not talking about chips from a WoW perspective…

But the i7 930 and beyond offers “true” hyper threading. Currently Newegg has an i7 950 for 279.99. If your willing to pay 250 for the 875, you should def consider the 950 to add another 6 months to a year of lifetime use on your machine on the back end (if you find yourself upgrading a lot, then ignore this comment on upfront upgrade cost optimization)

You should be aware also that the 930 and beyond also requires some upgraded demands from the motherboard and ram due to its true hyper threading capabilities.

If my comp sci theory classes from ages ago holds true in the practical world, a true hyper threading should give you significant performance improvement (as in not just benchmark numbers, but human observable results)

Side note: J&R is offering some ram at huge discounts…it may curve some of your cost as well…but the problem is you may have to buy it tonight…or this weekend at the latest