To the OP:
An AAL (Add-A-Leaf) is just that: it adds 1 extra leaf to attain lift. This is not that great of an idea. That one leaf alone will be responsible for all of the extra lift in the leaf pack. It will eventually sag under the weight of your Jeep with frequent use. Don't get me wrong- they have a purpose. They just don't serve as a long-term fix.
You can build a bastard pack or buy completely new sets of leaf packs. A bastard pack shouldn't cost you more than $50 or so to do it right, providing you have the tools.
A new leaf pack is a bit more. +$150-400 or even more depending on what kind they are.
Like I said (and I'm not trying to be biased, I just like good deals), if you are interested in getting full leaf packs for the rear, give Jason a PM on here. His screen name is GRIMUS99XJ.
For the front, coil spring spacers are coil spring spacers. As long as they aren't made of cardboard or some crap, you will be golden.
On shocks, you can get as cheap as you want. Just remember, usually the cheapest ones don't ride the best. I opted for $20 Monroes...cheap, but the ride quality is harsh. Bilsteins are great, as well as OME's. I even remember seeing some people using JK shocks (from the new wrangler) that people had gotten rid of.
Good luck on whatever you decide. Any questions?