Just kidding, I've been a moaner in the past too about ads but...
As much as I hate intrusive ads this one ain't bad... there have been worse. Also PCA are pretty good about taking comments on board, so maybe you could take on board that if you clicked some of them you'd help the site.
Ads a a reality of life on this site which we need to accept.
My only issue with it is most roll over ads will return to normal size after the roll over but this one will only do so if it is closed by me , the page refreshed or another forum selected. So it's very high on the intrusion scale and does obliterate a lot of the posts.