gears & pulleys

[Spyder1914]

well its Christmas time and i plan on getting a lot for my car that i couldn't afford right away. My gilfriends getting my fog lights, so i think im going to get gears, probably 3.73, but my question is should i buy ford and have them installed by them also. I think thats what ive come to learn around here, and are 3.73 a good size to go with, its a daily driver but i cant aford my gt yet Also ill ask for pulleys, should i get a 2 pc or 1. Does MAC make a good kit for a 95'? what other things are good for a few hp, at a decent cost, i plan in doing dual exhaust later.