2 ?'s. cv joint and fog light replacement

Hi,

I have noticed trans fluid leaking (not alot) out of my 98 Montana T/S. I crawled under and noticed it is leaking from the driver side CV joint boot. There is no clicking on turns so I do not think the CV is bad. Could I only replace the boot or should the whole thing be replaced? How hard is it to do? (I had replaced one in my Geo Metro in the spring and it wasn't too bad). What is the best way to go about it?

The fog light went out. Where do I find one?

Thanks too all in advance.

ffjohnny