Implementing Security for Apps with VB.NET or C# Self Paced Training
Hey cool, see there is a new Self Paced Training Kit out for .NET - thanks PaulT (now at KAZ) for pointing this out!!
MCAD/MCSD Self-Paced Training Kit: Implementing Security for Applications with Microsoft Visual Basic .NET and Microsoft Visual C# .NET (Pro-Certification (Hardcover))

And see that KAZ are running training around this certification - http://adelaide.aspect.edu.au/enrol.asp?courseid=302, thanks Paul:)
http://www.microsoft.com/learning/syllabi/en-us/2840afinal.mspx
http://www.microsoft.com/learning/exams/70-340.asp
http://www.microsoft.com/learning/exams/70-330.asp
Not had a chance to check out the book but the Table of Contents looks good, will order a copy and will post some comments here sometime soon!!
However if you have read it and have any comments please post here!!
Cheers, Dave