Upgrading to Windows XP

We are planning to upgrade our server and workstations to Windows XP. Currently it is NT 4.0 (Server) and Windows 98 & 2 Windows 2000 (Workstations). One of our servers is running Novell 4.0. It is only used as a place to save files and to run our Accounting Program – which is DOS Based (I would love to upgrade it by the powers that be think it is too much money). My question is there any known problems with XP and Novell? Any advice would be most appreciated. Thank you.