We ran across this same problem when developing 2 of our gardening sites ( www.leotas-iris.com and www.NapaIris.com ) and what we decided to do is to create category pages from a drop down box, and to do an alphabetical page, however you will notice that they aren't really scrolling down too far. I agree that if I come to a page that has all the content on one page, I'm likely to click out.
But I think that mikmik has an excellent point about keeping the persons attention if they think that they are reaching thier goal.
Have fun!