Ok, I went and looked at the larger pics on your web page and this is what my thoughts are:
Your headers appear to be pretty low as is so lowering it more would possibly cause more problems.
The car is sitting pretty level now, what I think makes the car appear high in the front is the fact that you have 17" wheels on the front and 18's on the back. You just don't have enough height differance between the two so it appears that they are the same diameter wheel and the front just needs to come down more, judging from the fender lips. I believe that if you had a 245/40/18 on a 18x8 wheel in the front it would solve all your problems. I know you probably don't want to buy new wheels/tires for the front; but if I were you I wouldn't want to lower the front any more either...not to mention undercut springs are usually a bitch to deal with when you have to jack the car up.
These are just my thoughts on the matter...BTW the car looks sweet!!