PocketMirror has worked wonderfully for me. I use Outlook at work, and I use PM to sync my PDA (Clie running PalmOS 4.1) with Outlook. I chose it because it allows me to filter out private entries so that certain entries aren't resident on my work PC. At home I just use the Palm Desktop, which I sync using the standard Palm sync conduits. Haven't had any troubles with this setup yet!