Mandrake is probably the easiest to use. Suse also has a good reputation for ease, though I have never used it. Red Hat (fedora) is the de-facto standard, though I personally don't like it much. If you like to really dig deep into software gentoo is great, and is probably the most configurable distro out there, but it is NOT easy to use.
Pretty much any disto will preform pretty much the same, they all use the same software, its just packaged differently. The only real difference between distros is the look&feel and the administrative tools.
Knoppix is really nice, since it runs off the cd and requires no install, though I don't know if it includes any editing tools.
I'd use knoppix to get a feel for linux, then use makdrake if you like it and think it will be useful.