Yeah, Coilovers are the best way to go I would say. Because, before I thought of getting springs and shocks, and dropping it like 1.5" I ended up getting Tokico Coilovers, and they say they drop up to 3" and I have them about 1/4" from the bottom. It sounds like it is slammed but it really doesnt look like it

But I always know that if I need it raised, I can just go into the garage, and do some twisting.
Stay away from the cheap coilover sleeves, they will break on ya. Mine cost 785. That was everything. But another 130 for front camber kit, and like 5 for rear kit(bolts and washers) You should spend about that much on them. Try
http://groupbuycenter.com for some good prices.
Yeah, a strut bar would help a bit with the swaying. A front upper strut bar helped mine alot b4 i dropped it, even though people said it wouldnt. But I would suggest doing the drop first, and then get that worked out, and then rims. Because when you first drop it, camber is gonna be way off, and I would rather be ruining stock cheap tires rather than expensive ones.
Another thing is have you worked on cars before? Cuz working on it yourself will save you...In many cases almost as much as you spend on the parts. I never installed anything as time consuming as suspension stuff, but I did my coilovers by myself in about 6 hours. And I learned alot. I can pretty much take my car apart and put it back together...and have(except getting into engine and tranny...havent ventured into that experience yet)