The Castboolits forum has a lot of group buys of custom molds. I have about a dozen, and I would have to say Mihec molds are top quality. Mihec's hollowpoint molds or hollow based wadcutter molds work great and the pins can be reversed to make a flat point bullet.
The only drawback to the group buys on the Castboolits forum is that the mold makers who participate are backed up past six months in orders, unless they have some overrun molds in inventory.
If you are LEO, you might want to avoid the Politics and Religion forum on that site though...