Advice from real webmasters?

I am a rookie webmaster and I want to backup a huge website that I am working on.

Whats the best way to do it? Or whats a good reliable online service that I can turn to?
Update: Ok Im using a CMS to create one of my sites and I have about 30-40 pages.

heres one:
http://myuniversalministry.com

Should I do the same thing?
3 answers 3