First, the roadblock will be the amount of RAM in the TS. It will take very little bandwidth for each user. The average would be about 100Kbs/user. So, let's take the worse case scenario with all eight working at the same time, this would give about 800Kbs total. And, this would be if every user were accessing/doing keystrokes/mouse clicks, etc. at the same time.
And, if you don't need "live" access, which I don't understand what they will be doing at the remote offices, then it will be even easier.
Syncing backups and syncing Dropbox is helpful and fun, but do you really want to sync every night with all of your patient data. I wouldn't be able to sleep at night. What if right in the middle of a sync, your Internet or server goes down? What will that do to your database. And, performing the perfect sync every time is asking a lot. Nothing against the development of the sync applet, but I would just not trust it for an operation of this scale.
