Well, I was asking in SME vs a PHP forum for a couple of reasons:
a) knowing that SME has various installs, etc, I didn't want to possibly break my existing MySQL by adding a Postgre one
b) hoping that possibly somebody else running an SME box had ran into this same scenario and found a possible workaround
But if this question doesn't belong, that's cool. I'll continue to look for my answers on other forums

Thanks.