Many thanks wr_schwab and all of you for the thoughtful and helpful responses. The easiest, cheapest and lightest thing to do (the 12" powerbook is still heavier than I would like) would be to get a new PC laptop, but I am going to spend the time and money to make the change. When I was using macs exclusively 10 years ago there were so little ability to use them easily in a mixed and business environment, but that has all changed. Plus there is that G5 I have been lusting after and my desktop PC is getting a bit old too.....