psionandy is right you can sync with 2 pc's I do it and the only thing you have to be careful of is the default settings for AS.
Its pretty simple you plug in at home and set up a partnership and then you plug in at work and set up a partnership BUT before doing that do a backup 'cos I usually find the AS default setting is for the PC/Server to overwrite the cotents of the Axim - mine is usually set up for the Axim to overwrite the others.
I learnt the hard way after setting up partnerships and wondering where half my data had gone

Fortunately I had done a backup so was able to change the settings in AS and restore all but a few lost appointments and then sync with the PC's and get everything up to date.
If you want to sync with more than 2 PC's it is possible and there are threads on the site but it takes a piece of third party software.