I have to manage a 21 user CPA firm. Thin clients work great EXCEPT when you have to deal with software that does not WILL NOT work in a terminal server (Quickbooks I am looking at you, and CCH/ProSystem fx). That and all the horrible 1980's abominations of software that accountants like to use. From an admin point of view its great, users like it also. Its just that 70%+ of the normal Windows software does not work on a server let alone a terminal server, it wants to run on a workstation.