Aye Feronix is right, I make a lot of wallpapers and logos and also do image repair (old photos) and I charge anywhere from £25 - £45 an hour depends on the size of the job. I do alot of signatures and avatars for these forums but that is free and out of respect for fellow users.
My advise is google the prerequisites needed for your task, and have a look at GIMP or Inkscape both great image editing programs, there are quality tutorials on youtube which will teach you the basics.
Now on the other hand if your after a rendered video intro then again like with image programs there are a few out there you can use, you wont get animated stuff done for free though.