Don't go with big networks which have "win ipad offers". You should go with less known niche and mini-networks. With the traffic like this you could easily get good offers. Some of them are hard to enter, depends on your affiliate experience. btw, have you checked CJ?
Other way is to direct contact businesses, but it takes time.
Easier solution is to sell ad space to some ad network, but you won't be making 5$/1k.
Best way is to make your own product or go with CPA model.
Let's say that the low average CTR is 2% and CR also 2%, that means:30k*0.02*0.02=12 sales daily.
If you find deal with commission (or your product price) of 20$ it is: 12*20$=240/30=8$/1k.
To know better and develop strategy one have to check website analytics, research market, demographics and so on.
There's social marketing, creating lists, prize games (good for fun based websites) and all other stuff you can do.
I takes time and testing to get most of your website - it is a process, or you could go generic and take what the big G give you.
