Aussie bar, IMHO. The car is much more responive then it has ever been. You car might even respond better then mine did because of the stiffer SE springs (mine is a `96 GL).
You could also drop the cash on some springs but that will most likely trash the stock struts.
If your struts are damaged/leaking/worn out I would consider those. If the seal is broken (leaking) you have lost pressure and it would cause the car to be less responsive because there would be no damping action and the suspension would be able to move more then Ford intended.
Just some options, it all depends on what you are looking for. Struts would give a better ride so you would notice that all the time. Something like a sway bar or a strut tower brace would only bring you joy when you turn. They are fun too. If you do get an Aussie Bar, make sure that you buy new backing plates from Aussie. You will rip your stock stuff off the car in no time.
