Thanks for the link. I'm going to need this in around 3 weeks time as I'm not ready yet for this. I just thought I would start looking around now to see what my options are. If the going rate is 3-5 dollars a pound that's around what I listed in my first post. I'll most likely get it from J & L. I do want to use lace rock for just that purpose, to fill up space.Lace rock doesn't have much surface area for colonizing bacteria so it just takes up space. "Dead" live rock is much better in this regard.
I know several people who have had it mail ordered from this place:
http://www.bulkreefsupply.com/store/products/eco-rox-fiji-dry-rock
Have you checked around for people getting rid of their "used" live rock? Anywhere from $3 - $5/lb is the going rate.