The recent "tick" from Intel in the Gulftown 6 core machines was not mentioned in the article you linked, but may represent a better value by next year when these Sandy Bridge mid priced chips emerge. They are already using the 35nm lithography and will have been out for 9 months or longer by then, and seem to be a big leap in performance in the benchmarks already appearing. Many vendors including Dell, HP, and others offer hex core models with the i7-980X 6-core chip.

No doubt Intel will carefully position the Sandy Bridge and Gulftown price and performance to make the Sandy Bridge chips look very competitive, but the 6 core chips still would offer the video editor a higher performance solution without necessarily adding a big cost penalty.