ERD Tool options/recommendations

[karlnyhus]

Lots of possibilities here.

Are there any good Mac database browsers / SQL tools?

I do a fair bit of work on client sites, and I wind up using phpMyAdmin in the browser to workshop certain queries and play with things. I just found myself wondering today if there are good Mac desktop tools that allow for this same sort of thing (i.e. local access to remote server). I figure there have to be, and that somebody in this community has probably used them. Any advice?