Caffeine fiends one and all should bow down to barista Greg Lefcourt. Longtime coffee jock and manager at OZO Coffee at 5340 Arapahoe Ave in Boulder, Lefcourt took home the gold at the Mountain Regional Barista Competition on January 18 in Thornton, leaving in his coffee dust barista competitors from distant locales like Montana, Utah and Idaho. That earned 29-year-old Lefcourt, profiled in a Westword story about the 2008 Mountain Regional Barista Competition, a top seat in the US Barista Comp