I used QuarkXpress exclusively for almost 3 years in a full scale 4 color print shop and lemme tell ya-. That program was the shiznit baby!! There wasn't anything any customer asked for that we couldn't print - and print it perfectly, exactly, identical to what the customer asked us for. Colors were spot on, bizness cards were so fast and easy with the 'step and repeat' feature in Quark it was awesome- "tic" mark's and all ensuring all registrations were perfectly lined up making the actual transfer to the presses much, much easier... "I love you QuarkXpress and I miss your simple, refined, and magically easy beauty.."
Now I have Windows 7 Professional.