wagner makes bulbs called tru-views that are really great for what u want...they run like 13 bucks a piece and the advantage over regular bulbs is that they give off a pure white light as opposed to the standard yellow...other than that u could get the sylvania trustars or something like that.

and if ya wanna improve gas mileage a good shot is droppin a kn filter into your car...i picked up 6 miles to a gallon on my chev pickup and 4 on a chrysler i used to own and 6 on my 454 mud truck