I just buy whatever cheap coffee is in Morrison's or Asda. Provided it's good stuff, of course. I don't care if it's from Columbia, Brazil, or Bridgend, as long as it tastes good.
Always caffeinated though. Don't try giving me decaf, I won't touch the stuff. Mainly because I drink loads of coffee, especially to get me up in the mornings, and there's no point drinking something for the caffeine to wake you up if there's no caffeine in it, amirite?