34 year *nix veteran . . . going all the way back to Version 7 when we cussed those hippies out west for making 4.2BSD and busting stuff. Dabbled off and on in Novell and MS worlds, but always came home to the one true OS.
Applications bore me (I couldn't care less why you can't change the margins on your spreadsheet yawn) . . . systems and infrastructure are the places to be! On the other hand, if you want your spreadsheet distributed to 50000 users around the world and need it done in a few moments, we can talk! ;-)