First of all, let me say that I'm a REALLY newbie on LaTeX (just run out of patience with MSWord!!!)... So, please be patient with my doubts

Back to the point...
I'm writing a document (book class), but (since it is a technical one) it has a VERY DEEP sectioning.
From what I have seen, LaTeX has \section, \subsection and \subsubsection (followed by \paragraph). This should result (if proper formatted) in something like:
1. First Heading
1.1. First Sub-Heading
1.1.1. First SubSub-Heading
But I actually need more depth... something like:
1.1.1.1.1.1. First abyssal-Heading
I could not find an "easy" way to do that.
I believe that the only way to achieve that is to define new environments (and style them), but I think the best way to be sure is to ask.
If I'm wrong, can you please provide a solution?
If I'm right, Do you know any free default styling's? (It's hard for a newbie to do something with a minimally "professional look".)
Thank you very much for your feddback.
Regards
ACombo