You're looking for the ProWheels thread. I'll try to find it. Their website is prowheels.net. 20inchers cost $2150/set if I'm not mistaken. They are two piece forged, although not as light as you might expect. Comparable weights to high end cast wheels (Vossen monoblocks).
Edit: Ok looks like it was deleted. It's not showing up under NineBall's list of started threads unless I looked over it. Perhaps the deal is over or something, might wanna PM him. In fact maybe I should too since those are the ones I was saving up for