In reply to cookie-doo:
Hi Ana.
I've worked in photography since 2003 and as a pro (commercial & press) for about eight years now. I took a slightly different route to you in that I started out working in photographic libraries, but did similar to you in that I listed all of the people I thought I might like to work for and just phoned all of them up. I don't think I sent off any CVs or even had any interviews, preferring the direct cold calling method to get started. I eventually had some luck with Royal Geographical Society who needed a paid intern which in turn was just what I needed, a brilliant and inspiring place to work and a good springboard.
So I'd say just phone everyone you might consider (or even knock on their door) It's far harder to ignore a phone call than another CV on the doormat, or an email.
As far as 'adventure photography' goes, I know very little I'm afraid. So far I've earned a small amount of money from photographing climbing in its various forms and am in the process of doing something that'll earn me a bit more, but overall it's been a tiny, tiny part of my income so I'd say do think about other commercial directions too. That said if you can afford to spend a bit of time embarking on purely adventure photography now, it might be your best bet before becoming mired down in the expense of mortgages and kids - if you aren't already.
Likewise, any questions just send an email.
Good luck.
Tom