Thanks for the welcome, guys! I'm looking forward to immersing myself in learning the terminology and knowledge necessary to decide what lens to go with my GF1 (that should arrive tomorrow!!!

) bought from a fellow member.
I'm a funny duck. When I take up a new hobby, I tend to research the subject out the gazoo for a few weeks/months getting a solid working knowledge set up before I purchase anything. I try to do enough research to make a well-informed decision on any purchases necessary, so that I don't have to spend more money in the long run.
Before finding this place, I did several weeks of research on dpreview.com poring over their awesome reviews, comparing ergonomics and interfaces and other stuff. I finally found the

format, and then finally narrowed it down to the GF1.
That said, I'm impatient to find and purchase a lens so I can get out and photograph stuff!!!
I'm thinking I'll ultimately need 3 lenses. A good macro, a catch-all, and a tele, since I like taking long shots.
I of course have my eye on the Panasonic 20mm f1.7, but I think I can wait for it to become a little more available.
I know nothing of multiplication factors, focal lengths, angle of vie... Maybe I should tell y'all what I
do know...
I know that a larger F-stop means the aperture is smaller, letting less light in, and holding more of the foreground and background in focus (would that be termed "a longer focal plane"?)
I thought a larger mm number meant that the objective lens was larger, therefore gathering more light, but it seems it has to do with the magnification, and field-of-view too, somehow.

Basically, I don't know jack.
I'm perusing the 4Sale section for stuff, but frankly, I don't know how to decode what I read into a coherent description of the thing.
Well, back to reading for me!
Acer