Hello gurus!
I am a computer engineer (a Spanish five years degree) and a MCAD.net professional. I know about general architecture but not architecture in .net world. I want you to tell me a good first book about architecture under .net (net 2.0 ), develop real scalable applications, n-tiers, etc etc.
Thanks.

A good first book about .net architecture
kalpesh Sr.Software Engineer
twostars
There are many great .NET architecture books (MS Press has a ton of them:D)
You mention N tier design in particular; for this often times general books apply just as well as .NET specific.
For n-tier data based apps I would highly recommend.
Domain Driven Design - Eric Evans http://domaindrivendesign.org/ (there is also a quite active mailing list here)
P of EAA - http://www.amazon.com/gp/product/0321127420/sr=8-1/qid=1141111892/ref=pd_bbs_1/104-2972699-4583102 %5Fencoding=UTF8 no not this one http://www.amazon.com/gp/product/B0006P5HWK/ref=sr_11_1/104-2972699-4583102 %5Fencoding=UTF8 :D
and a book which is shortly to be released by a gentleman floating around this forum.
Applying Domain Driven Design and Patterns in C# http://www.amazon.com/gp/product/0321268202/sr=8-1/qid=1141111946/ref=pd_bbs_1/104-2972699-4583102 %5Fencoding=UTF8
Cheers,
Greg
Jeff Lucovsky
This looks good - Pro Scalable .NET 2.0 Application Designs, though I don't own it, I have browsed it in the bookstore and it is next on my list.
If you understand architecture, and you need a good guide for using the the .Net mechanisms that will build your system: Lowy's Programming .NET Components, Second Edition is excellent! Probably a little too low level for what you are looking for, but it is worth owning!