Dude, I don't mean to be rude, but I read your message three times and still can't quite figure out what you're trying to say.
But as a general rule, when you buy content you can buy stuff that people are selling to a lot of other people, which is fairly inexpensive (check out Bad Ass Feeds, for example), or you can pay people to do a custom shoot for you and then they sell it to you and only you.
Another alternative is to partner with someone who has a similar site as yours and then split the cost of shoots.
Hope that helps.
Kesey Seven
www.webelez.com