I got this one from bouteia on eBay and it arrived last week. I absolutely love the Filofax Kensington in personal size. It is just perfect for me and even though I have Gillios, Van Der Spek and exotic Filofaxes in ostrich and lizard, I would give them all up in a second and use this model if I could only use one organiser for the rest of my life.
It is just perfect in every day. Unpretentious, reasonably priced, classic, light, well-designed for use as a wallet/organizer, and is very hardwearing. I also love the square corners and the fact that it does not have stiffener.
I now have black, blue and red with an apple green on the way.