Mr. Gadget - like a number of people I finally had to purchase for business reasons and ordered my 17" from Amazon - had it about a week now and I continue to be very impressed. Apple is going to have to do something more than dump a Merom into the next one to incent me to sell and go with the Rev B.
As to the bags - you really need to figure out the protection / cost / style / size / features equation - many solutions out there. I found the BOOQ to be high on style but surprised as to how little protection their line provides, especially when you look at their price. Crumpler and Waterfield designs did not do much for me either. The cheaper bags can really let you down when you drop them and are counting on the protection. I finally purchased a Tom Bihn BrainCell #1 that has hard siding and carries your laptop in an internal foam sling - about the best shock protection you can find. I would look at the Trager Courier as the main bag to slip the BrainCell into. IMHO - if you can afford a $3,000 laptop you should not worry too much about $225 or so for the protection / features / comfort / etc of a higher end bag.
EDIT - if you can find the SwissArmy web series 2.0 (something like that) for a good price BUY IT - superb bag and quality. They are on a close out mode now and the 15" SwissArmy will accept the Tom Bihn BrainCell #1 that you new 17" MBP might live in
