I put 3.73s in my 00 GT and they worked great, and the car never felt like it was winding too high on the interstate, even at 80mph plus speeds. If it were me, I'd opt for 4.10s instead for a general purpose car. They do make a world of difference in the seat of the pants feel of the car.
With my recent upgrade to a 04 cobra, I really don't think the minor improvement of 3.73 would be noticeable over the 3.55s. So I'll probably stick with stock for now.
LW