Preparing to upgrade to Exchange 2010. I understand the issues with Outlook 2003 with response time, needing to run in Cached Mode, etc... I'm looking for feedback as to your practical experiences running this way, with Outlook 2003/XP. In my perfect world, I'd upgrade everyone to 2007/2010, but for a number of reasons ($, foreign plant), not able to do this before the upgrade. Thanks for your contribution!