Magento - navigation questions

I would like to have the ability to link to static pages from the menu bar at the top that currently displays the Home...Products links but dont seem to be able to find where/how to do this. I also would like to have several types of products listed and currently i can get products/categories on the same link but dont know how to get a second set of products on the menu bar - as an example I want to have a products section that has categories of “dry goods”, a products section that has categories of “live foods” and a products section that has categories of “animals” (I own a Reptile businesss). Thanks Tony