2003 rattles on driver side upon acceleration ALWAYS!!

HELP!!! my ford Focus SE has started rattleing (maybe for the last 6 months) only on acceleration at all speeds but is more pronounced when going slow and sitting idle. It almost has a air sound like a "woop woop" and gets faster as the car gets faster. it has almost 90k miles on it and is going to the shop to have major repairs on the window switch, brakes, shocks and trans fuild flush. I also need an alignment and 4 new tires as well- do you think it has anything to do with these issues or is it something else? Everytime I take it in for an oil change and describe it for them they look at me like I am nuts then they want to charge me 95 dollars just to litsen to it.:screwy: