Here are my deals:

Deal 1: 1 REG + 0 POSTS = f$400

Deal 2: 1 REG + 1 POST = f$650

Deal 3: 1 REG + 2 POSTS = f$800

Deal 4: 1 REG + 3 POSTS = f$1050

Deal 5: 1 REG + 4 POSTS = f$1300

Deal 6: 1 REG + 5 POSTS = f$1550

Deal 7: 1 REG + 10 POSTS = f$2750

And if I like your forums, I'll continue posting for free...
I prevent you, I won't register twice, trice or w/e... Just ONCE!
Oh yeah... If I already registered to your forums and you want me to post more and faster, 1 post will cost f$250 (if I already did above 10 posts), f$300 (if I already did above 5 posts) or f$350 (if I posted less than 6 posts).

SPECIAL!!!
If you buy a banner from this thread: Selling Abstract Banners, all the prices (ONLY for you) will be lowered to the least legal price (which is f$250 for each post and registration).