Recently, I've noticed that on the passenger side there is some kind of rattling or creeking while going 35 and under (can't really hear much as far as suspension goes at 35+mph). It isn't constant, just every once in a while. Like I'll hear it 10 times in a 20 min drive going 45mph tops. And when my G/F gets in the passanger side it makes that sound so I'm thinking it's suspension and no my G/F is not fat, she's 5'2" and normal weight, so that's not it. I also noticed that the sound is loudest while going over bumps. Now that I think of it, it actually sounds like when something hits your antenna and it makes that metalic vibrating sound the second it's hit. it sounds like that only in succession and not in a patturn. My first thought was the spring, but I don't know enough about suspension to troubleshoot it myself, nor do I have any money right now to fork out to a mechanic.
Im thinking strut mounts, but it could be something else....now, have you done any suspension mod, heated springs etc?

CaviFL45
check your strut mounts and see if your cv boot isn't ripped, if it is you could be loosing grease and fried your cv shaft.

-Chris