Bob is completely correct about the fonts and copyright. A font actually can not be copyrighted since it is a representation of the original copyrighted typeface. Fonts are only the software that you are
licensed to use, the
Typeface is the actual design of the characters. Garamond is a typeface, you have a font of it on your
computer.
Some of the software companies out there actually have created a lot of their own problems by allowing fonts to be collected so they can be sent off to service bureaus and printers. If you were to check the actually licensing agreement from Adobe (it may have change in the past year or so) where it stated that you could collect the fonts and send them to the service bureau, but the service bureau could not use them unless they actually had a legal license to use the font (which means they had to pay for it-kind of defeats the purpose of sending the font in the first place). Adobe and many other font makers are now making it so you can not even embed a font into a program (and make a PDF of it) so you are forced to convert them to outlines.
Creating outlines does make the font slightly bolder than not outlined but I actually did some testing a few years ago and quality fonts were not effected as drastically as low quality "free" fonts and depending on the actual printing process (off of a real printing press-not a digital printer) actually made the font bolder than the convert to outline process did.
I make a habit of never sending fonts anywhere. I paid for the font, I do not want someone else using and most places that you send a font to will end up using that font for their own use. I try to stay away from many of those free sites because they are mostly badly created fonts to begin with and many times they are licensed only for personal use, not commercial.
The down of buying the font for the client is that most licensing is not tranferable, so if you buy it, the license is in your name and basically you are still just giving them the font, they would still not be licensed to use it.