I just had a great experience with Shoreline-Aquatics.com. Thomas sells tank raised Orinoco-types, which I think are the prettier type. You can see the spawn, wrigglers, free swimming fry, etc. on the website. They're just starting out, so there's a couple of good introductory deals available now.
The fish I got a week ago started eating right away and I've got a real good feeling about them. I've spoken to him a few times, so I encourage you to mention that I sent you.
Willie