No matter who you talk to, many have mixed feelings on certification. Mind you, I do not possess any certifications but do own a BS in Information Systems Technology and Computer Science.
I guess when things were exploding in the 90's certs were a novel thing but today many things have changed. In theory they are great for showing competence in particular vendor technologies.
I can side with most of the points made in this article:
http://www.informit.com/articles/article.aspx?p=1180991
Now don't get me wrong, I have been contemplating an MCSE, RHCE or LPI. Then again, I want a masters as well.
Please post your thoughts, and why you got certified. Seems some people who want to change careers go this route.