You can start looking at Aerial Photography and Aerial Videography pages.
There is a forum for that over here: http://www.rcgroups.com/forums/forumdisplay.php?f=128
And here: http://runryder.com/helicopter/f25p1/
If anyone knows of a forum on this board, please post it. I could not find it with a quick search.

Now, about your plans. I think that you should separate your tasks into two pieces. First, learn to fly a RC helicopter. Secondly, add videography to that hobby. It is hard to do it the other way around. Flying a RC heli is a very challanging task to learn. You would be best served by investing in a good sim, a decent transmitter and, I would think, a beginner nitro heli. (Normally, I recommend starting electric, but if your stated goal is bigger birds, then Nitro is what you want)

What is your budget like?
Are you aware that there are tiny cameras that fit on the smaller helis as well? Granted, they do not have the high quality that better video equipment will provide, but I do not know your ultimate use for the footage.