Microsoft Licensing, Select/SA
We're thinking along the lines of buying Office 2007 on select as we're currently on Office 2003 then also buying Windows 7 and Server 2008 outright as well (as soon as available). This should give us at least 5-7 years before we need to buy a new client OS and a good few years before we need to update Office.
Our school is not expanding so I don't foresee us buying many extra PC's only replacements, we are also rolling out more Citrix clients so our full Windows client numbers should decrease.
Am I missing any major pitfalls here?