Welcome to Gimper!
Sorry for the late welcome, I never know when I can get on a comp as mine is broke, and having a pain trying to get money, and I'm in rehab right now so things are pretty crazy.
You forgot my - http://youtube.com/mikethedj4
Also laklaker I have a gimp tutorial site I made a couple months ago called (http://gimppimp.tk/
) which is for advanced gimp tutorials, but there's no tutorials up right now, cause of my computer issue, and idk when my comp's gonna get fixed, but I thought you might wanna check that out too.
There's loads of Gimp tutorials out there though, you just gotta know where to look like , or for example. That's actually how I found David's Youtube Channel.