Analyst Shaw Wu of Kaufman Bros. has rated Apple a buy in response to today's refresh of the desktop Mac line. New Mac Pros, iMacs and Mac minis were all announced, with upgraded CPUs and graphics cards. Wu says he is pleased with the earlier-than-expected refresh, and positive on the price drop for the base 24-inch iMac, now $1,500 instead of $1,800. The analyst is disappointed in the entry-level
