What you are looking for, Smackre, is something generally termed "data synchronization" and there are many different options under this genre that might fit your needs. Without seeing, in person, your setup its hard to totally understand what it is that you are trying to do. However, based on our conversations, I feel that something along the lines of "Save-n-Sync" would fit the bill nicely (
http://download.com.com/3000-2242-10...l?tag=lst-0-11). There are many other alternatives at download.com -- most, fortunately, with trial versions. I think you'll find them all running within your price range (based on my observations and your willingness to purchase a WAP).
In any case, I found Save-n-Sync to be among the most attractive of the software suites available on download.com primarily because of its ability to utilize shared network drives and real-time operation (versus scheduling tasks to run in 10 minute intervals, for example).
It isn't the only choice, however, and I admit that I've never used this particular software package before. I did commit myself to the download and it does appear to be in line with my expectations -- and hopefully your's.
For the sake of impartiality, I have included the full listing of my search results. You'll be looking for the data backup and sync solutions, and, naturally, not the software pertaining to accurate desktop clock settings.
http://download.com.com/3120-20-0.ht...ion&tg=dl-2001