I too have a "friend" who couldn't do his job as well as he does without some level of OCD. Computers like strict adherence to rules, and perfectly formatted data. Although he sometimes does find it hard to finish projects because the level of order required to finally call it done just isn't achievable.

He sometimes wonders what life would be like without the driving need to reverse the entropy around him, but also worries that without those compulsions he'd cease to be himself.
Pioneer VSX-1018AH-K, PDP-5020FD, DV-79AVi
Axiom M22s, VP150, QS8s
Sony PS3, surround backs