First - I want to lower my car just a bit - for better handling and lower center of gravity (I don't want it "slammed" to where I can't enter driveways).   What is a good drop?  1"?  2-3"? 
Second - Can I do the lowering myself?
Third - Will I need an alignment?  And, if I do, what are the best alignment settings for 50/50 track and street use?   If I need an alignment, do I do it with my track wheels installed (they are wider), or with the street wheels... or does it matter?
Car is currently running on stock suspension and stock ride height.  These are the track wheels and tires in the pic.
 
