Big Macs (!) and PCs are actually alomost exactly the same under the skin now and can share expansion cards / peripherals.
What Mac seem to be doing at present is pricing thier full size machines very competitlvely, they always cost more than a similar pc but top spec macs look to be a great deal at present.
http://store.apple.com/Apple/WebObje...VMI0oq1GMW1fpU
Two dual core Xeons - that is one fast computer. Spec it with 2 big drives and you will be in editing nirvana.
I am sure one of the cheaper macs will do the job fine but if you can afford it this is the baby.
I would buy one in a snip if I had the cash and run xp on it (shame it looks like a fanheater ).
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