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I gave the contact page as example but the question was for the entire website. I'm asking this beacause I must use a CMS to modify the website but it allows so little SEO parameters. I just want to make shure that Google won't penalize for trying to ''trick'' their search engine.

I wrote about this a while back - I think it 98% still applies today: http://www.seomoz.org/blog/how-many-links-is-too-many It's really a question of dilution - the more thinly you spread your internal link "juice" (PR, basically), the less each page gets. So, it's often a balancing act. There's rarely one right answer, but I find that less is often more. I think Istvan's point about users is important, too. It's easy for people to get overloaded with options. I've seen sites with 500+ links that presented them very well, but that's rare. At the same time, those were big brand sites with a lot of inbound links and authority, so they can play by different rules.