Some are:
Not enough Items,
Buildcraft,
Industrial craft 2,
Redstone power
no mods dont work
You can if you use mods or server texturepacks
bearshare is not required to get minecraft mods.
Yes, most Minecraft Mods are updatable.
No, Minecraft Forge is not illegal! That is why many people still use mods.
just play minecraft
no mods dont work
you can get minecraft mods and textures off the minecraft mods website.
YOu download them.
Mods come completed, there is nothing you have to finish to use them.
You can if you use mods or server texturepacks
Google for Modstallation. You can use that software to install mods.
NOPE
You don't need a CD for mods. You don't need a CD for Minecraft at all.
Yes, you can download and install mods on the PC version of Minecraft, there are several gun mods you can apply.
A good way to get minecraft mods is to use Forge. With Forge, you can download mods of your choice instantly. Just download the Forge client, and you're good to go! :D
bearshare is not required to get minecraft mods.