I would recommend a Tucano Second Skin (notebook neoprene sleeve, $30 at Fry's) for your PB. I got one for my iBook and it's awesome. Don't know much about bags, as I just stick my iBook in my regular backpack and it still looks almost new after 6 months of constant transport and use. And you can find decent bags for the $95 you would have left afterwards in the bag thread (do a search). Good luck with finding a bag.