Late last week, we noted that Apple's business sales staff have been offering customers price quotes for build-to-order configurations of the new Mac Pro, providing the first glimpse at what these machines will cost beyond the $2999/$3999 base configurations shown on Apple's site. Since our initial report, we've heard from a few other business customers who received price quotes, and that information has helped us to piece together what we expect retail pricing to be for the various upgrades. Due to varying discounts for business customers included in the quotes and in some cases currency conversions that we have attempted to take into accoun