Thanks especially for the boolits link. I read the posts about the Lee six cavity moulds and it seems that they are typical Lee junk that can't be counted to last any reasonable length of time unless the shooter happens to think that 1000 bullets is a lot.
I think this project has been nixed because between the cost of lead and the stuff I'd need to cast with, it's just not worth it.
If Lee has a good guarantee on the product, it might still be worth doing. Do you happen to know if they're good about replacing broken things?