Thanks for those responses, Roger.
As a general comment (and following on from my own "ad-hoc" research), it seems that - despite various assurances to the contrary by "RFID enthusiasts" (and/or sales people) - successful implementation of a hospital-wide RFID system is probably not a simple exercise.
There seems to be a fair number of pitfalls just waiting to snare the unwary, and a well-designed initial installation would need to allow (and budget) for various add-ons and fine-tuning events as time goes on.
