Check the sway bar endlinks, they are known to make noise if not really tight.
Also, on my old 325i, I had a blown front strut that would clunk and rattle on larger bumps like the driveway and speedbumps. You can check for a blown strut by looking for oil leaking out of the seals arount piston.
Oh and welcome to the 'fest!
Member #2 of the Boston Green Mafia BMW-CCA #457574
1995 BG M3 2000 TiAg 4.4l X5
-I do the things today that others won't do, so I will have the things tomorrow that other won't have....