Carey is absolutely right. Unless portability makes you huge dollars, a desktop the smart business decision. And forgetting platform wars, unless you have large investment in apps etc. that are not cross-platform, a Windows desktop is also the right call as the price performance difference is pretty massive. A friend of mine at a leading local production shop just bit the bullet on one of the new 27” iMacs because of his investment in Apple stuff – by the time he got the storage, external monitor configured to match a true desktop setup, the price tag was quite scary.