Nice site, ginormous potential. I would be careful with having nudity on the same site as my FTP ads. It seems to me that with rankings like you get, that there are so many other ways for you to make money that I guess I don't quite understand the FTP ads. That site has so much potential, and there are a thousand things I could think of to help drive traffic, and get visitors to return. If you could develop it more and get a band of loyal visitors - geez, that's where the money is at.
I get the feeling that you're 'trying whatever you can' instead of just focusing on the content. With a site like you have there, content will keep your traffic coming back, and generate the ad money on it's own. When you look at your site, don't you think to yourself "wow, I could make a killing if I only had more fresh, daily content"? The keyword ranking is the hardest part, you're apparently doing really well with that. Now, focus on making the site as cool as possible. That's what I would do, and I would personally scrap the poker ads (not the links, just the ads).
I probably didn't help you with a damn thing, just telling you what I was thinking while browsing around.
TheDonk