EDTA for lead. IV is quickest (find an integrative med doc who does chelation), but there are oral options also and you can buy oral EDTA various places online. DMSA the synthetic option for mercury chelation, can be used together with EDTA without any problems.

There is some antagonism regarding chelation with amalgams still in, but most integrative med doctors will tell you exactly the opposite, that it's actually wise to begin unloading heavy metals prior to amalgam removal so that your body has an easier time with the removal later on. Especially if there is an already existing high heavy metal blood content, chelating prior to removal is probably wise.

I have been chelating for several months with amalgams still in and have not had any issues, have only gotten better.

It's a good idea to have a reputable doctor who specializes in this area to help you with it, but starting an oral EDTA and/or low level DMSA (25 mgs) is probably ok on your own. Be sure to take an N-acetyl cysteine supplement while chelating, you might want to add 60mgs daily alpha lipoic acid to that routine also, and follow directions on the chelation package to a tee.

Use Vitamin C ascobic acid a few hours before and after your chelators.