try looking in the Amalgam Forum . I got Diamondlite (Diamondcrown) products after doing research, it seems like the best I could find out about. I got about 9 fillings replaced with it in April and so far so good.
You can find a good dentist by going to www.drhuggins.com and asking for a referral. You may have to drive some but in my humble opinion it's worth it to get a good dentist who is familiar with the proper protocols and who won't further compromise your health.