Get the best setup money can buy: Your
desk (IKEA is perfectly
sufficient), your chair (Herman Miller's Aeron is my personal preference — try Scott Howard for secondhand, reconditioned ones at a fraction of the price), your monitor (the bigger, the better — mine is a Dell U3014 with a 30» screen), your computer (Apple Mac, obviously), your speakers (get a premium subscription to Spotify), your
desk lamp and even the way you accessorise the
space.