It is like a 'burning-scratching' feeling that stings at first but once your natural endorfins (sp?)kick in you'll be fine. I think the place that hurt the most was on the top of my fingers and I just have a series of dots and lines. That DID hurt.. But not so much that I didn't want another one. Very addictive ancient artform --you can work with the pain and get yourself into a trance-like state. Very ritualistic.
You can also take the picture you drew to a tattoo artist and have him/her clean it up a bit to suit you and skin so it will age well along with you.
Best of luck to you and keep us posted!