Wiggle and Rattle in 2000 Intrigue

I have a 2000 Intrigue GL with 155k miles on it. Over the last month or so, the car has developed a "wiggle" at low speeds (35 mph and under). Meaning at low speeds I can feel the car move from side to side. Nothing dramatic but you can definitely feel it. This movement disappears at higher speeds. I've also notice "rattle" or vibration which seems liek it is in the front passenger side. That also happens more at low speeds but i can also feel it at highway speeds.

I'm getting the car inspected in two weeks and will have my mechanic look at it. I was hoping you all could give me some suggestions as to what might be going on.

Also I replaced my MAF sensor two weekends ago with a used one off of EBay ($42 including shipping). No codes since then and my first full tank of gas returned over 27 mpg (yes i do track my mpg for each tank).:loser:

Sounds like a slipped belt in one of your tires, your mechanic should have no trouble finding this, same for the noise, this requires on site diagnosis with a road test, naturally.

Thanks maxx. I'm probably due for new tires within the next couple of months.