Thanks for the replies. Of course, I welcome ryanjo's advice more as it supports the model I want it to.
We already have a wired ethernet setup here for about 7 desktops in our offices; the exam rooms are not wired. I don't want to for various reasons (eg cost, redesign of rooms, buying a computer for EACH exam room etc etc), plus I like the interaction of a notebook on my lap while looking directly at the patient versus sitting at a desk with them behind me.
Anyway, looking into n-band wireless today (our network was too complex for me to do and it took our IT dude a while to figure it out too). There are lots of wireless networks -- 3-4 at any time here. My android phone has fun picking out the unsecured ones.
Synch so far has yielded no errors I know of for me, but you have to watch carefully which database is "live" or you will wipe out a whole day's work.
Still waiting on the yokels at our local quest cust svc to figure out what they're suppposed to do and also electronic prescribing....but otherwise I am enjoying this.