ok.... so i have leg warmers and tights for the road bike.... but what i need to know... is what to wear on the mtb in cooler/cold weather?

do i wear my baggie w/lycra chamois insert mtb shorts with leg warmers? do i wear my "road bike" tights?

what do i wear to be warm? i'm going on a mtb ride sunday and it will be cool/cold for me... so i'll need to cover up my legs.... just not sure the proper way to do it (sweat pants???? )

help!

thanx!