I'd go with lighter wheels and the CorkSport crank shaft pulley first, then follow up with the CorkSport short ram intake. Reason for doing the wheels and crank pulley first is that it sounds like you want to feel a little quicker in 1st and 2nd. Reducing your rotating mass and unsprung weight (anything not on the springs; ie, wheels, tires, etc..) will do wonders for feeling quicker. The short ram intake will help, but I'm a little gun shy on the cat-back exhaust. Seems to me that reducing back pressure too much will actually cause the car to feel less "quick." To me, getting more air and cooler air in would be beneficial, but without a software upgrade, the cat-back feels like overkill on a car that putting like 90 hp on the asphalt.
Just my opinion.