I had to buy a new keyboard after my other one died, and I would like to actually use the "extra" buttons, such as vol control and webcam access. I've done a search and whenever it looks promising the response is usually along the lines of get the keyboad driver. I went to Logitech.com and they don't have Linux drivers. How/where do I get the drivers, or if there is another answer can someone hook me up?

I use a Logitech Cordless Desktop EX 110, and when I want to use those buttons, lineak does the trick, although it sometimes takes a bit of work to get set up. Make sure to get the Klineakconfig plugin to make things a lot easier.

I don't know, maybe my mind is too fuzzy from the Killian's, I was able to set the keyboard to the correct one in the KDE regional settings, but khotkeys keeps crashing. I got LinEAK with the KLinEAKConfig and the email button works, but none of the others I assign do anything, and at first the email didn't work then it suddenly started to.

Edit: Now the email button has suddenly stopped working. I'm so confused now.

Personally I use just xbindkeys: http://hocwp.free.fr/xbindkeys/xbindkeys.html
I tried lineak but prefer the simplicity of xbindkeys (lineak does have some interesting extra features). Keytouch is mostly a front-end for xbindkeys.

KDE might be grabbing the keyboard events before any other daemons.

why not just use .Xmodmap ? do you not get events from xev?

You don't need any filthy binary only drivers from Logitech. If you are using XFCE then you need to use the .Xmodmap procedure because the XFCE multimedia key daemon expects keysyms to be set up for each multimedia key. As for Gnome I remember it having a multimedia key daemon called acme which was very easy to set up without having to bother with .Xmodmap, but that was back in 2003 with Slackware 9.1 and Gnome 2.4. KDE may have such a straight forward setup too.

Anyway, the Gentoo HOWTO linked to by H_TeXMeX_H is good. I used it last summer with Slackware 10.2 and XFCE 4.2. Besides, with .Xmodmap you can do other fancy tricks like mapping the ACPI buttons etc. I have a US layout keyboard, and using .Xmodmap I mapped some Scandinavian characters to the three ACPI buttons.

The advantage of a daemon separate from a window manager is that you can switch window managers without having to set up the multimedia keys each time, and the effects of hitting a key will be more consistent.

Window Maker (my primary window manager) has the ability to have keyboard events attached to any menu item (so for example you can set up a submenu full of all the events), but I found xbindkeys to be smoother in its implementation.

I fail to see how just using .Xmodmap by itself will accomplish anything. You still need a daemon to handle the key presses...