Today is my turn to come forward and give my 2c. I'd like to thank everybody contributing here and to the hosts of these forums. You're all doing a great job!
After a month and a few days of waiting I got my results today (I think that even if they finish evaluating sooner, they don't post them

)
Score:86%
Class Diagram (44 maximum) .......................... 39
Component Diagram (44 maximum) ...................... 35 Sequence/Collaboration Diagrams (12 maximum) ........ 12
Preparation: Cade's book was of some help in the beginning to get an idea of how the assignment should look like. For UML, I used as a reference "Learning UML 2.0" By Kim Hamilton, Russell Miles and "UML 2.0 in a Nutshell" By Dan Pilone, Neil Pitman. And then there were different articles, the Sun Blueprints, work experience and of course, this forum.
Class diagram: only BDM classes, 18 in total, an extension of the proposed model.
Component diagram: I was too lazy here

and used the UML 1.1 dashed arrow "use" notation instead of the lolipop. I used one component to represent both clients and didn't go into too much detail.
Sequence diagram: not too much to say here, it helped me learn the UML2 notation.
Assignment document: about two pages long, with sections describing general architecture, assumptions, conventions, security, etc... - all in bullet style statements
In the end I think it's a decent score. I have 6+ years
Java experience, but most of it as a developer. I downloaded the assignment about six months ago and then got busy with work and everything. When I get back into certification mode and start working on it, it takes me 2-3 weeks, in-between work and other things, maybe 35-40 hours in total. But I think it can be finished in 2-3 days if you have a few years experience and you can focus full time on it.
And as I got 87 on the first part, this must be my level now.
Cheers!

[ April 05, 2007: Message edited by: Gigi D'Agostino ]