Ok, I got to thinking, the pro accounts seem to be moving along nicely, it would seem plenty of people are taking the plunge, with a tiny percentage of out raged users.
On the 'sway over to pro' page where it lists prices, I suggest adding a series of testimonials, e.g. If someone was looking through one of my punk weapons, and hit the 'pro wall of denial' only to see my Testimonial, they might then think 'hey, maybe i should try it for a month'.
Same principle, someone whom uses the forums alot, might enjoy a little testimonial from Kiteman, or Nachomahma.
Not that we should play off are 'famousness' but if we get a wide range of testimonials, it might easily appeal to a wide range of people.