You're a good man. I told my wife-to-be that I would wait about a year until I started modding. I lasted two weeks and 200 miles until I bought the GT500 AB. I enjoy them. Might also consider a strut tower brace...I've heard they tighten up the front end and they don't cost a lot of $$.
I would definitely get the strut tower brace, when I had the V6 it did not come with one and it really tightened up the front end when I installed it.
The question is are you going to get the boss intake manifold or keep the stock one? There might be some stock Strut tower braces in the classifieds here if you are going to keep the stock manifold, if you are going to upgrade to the boss intake then you'll have to get the brace that fits over the manifold.
2011 V6 Mustang - Premium 202A Spec (Pony Package) - SOLD!
2014 V8 Mustang - Premium 400A Spec
6 Speed Manual, 3.31 Rear
Black, Charcoal Black
Comfort Package, Security System