This is a really good question, I want to look at movies though its a bandwidth issue for me too. Im slowly working my way up the hosting packages, increasing my connection speads etc.
I kind of see the lead from pics to films for me is still atleast 9 - 12 months away unless I want to start running at a loss. Recently I started looking at TGP'ing too but again its an unknown quantity to me which comes with a cost.
Like you I like to make a profit so for now I am sticking to pictures.
May be you can make a ladning page which you direct your free sites too, then you can have movies on your sponsors server. I do this here -
http://www.smithslookup.co.uk/inbedw...faith/main.htm
I was forced to do it as the sponsor changed programe and I was left chaning hundresd of bits of code :-( now everything I have goes there and I have just a hand full of codes to change.
Its been 12 months or so that I started webmastering fulltime, I dont make a living from just affiliate sales alone (I just over $1,500 pcm) yet so I perform tasks for other companies. What I am acheiving by taking things slowly is growth and an increase on revenue each month.
All I can say to you about the business is its tough, competition opens up everyday & sponsors that are 'by invite only' will make you more money.