A few tech. questions... anyone?

[azwethinkweiz]

Alright..
I have a 97' LX Sedan..
a few issues:

Ever since I can remember, when my a/c runs, a ridiculous rattling comes from under the dash more toward the passenger side. Also, when the a/c is running while idle.. my engine rattles like I'm driving a farm truck.. Is that a problem with the compressor itself? or the Condenser Fan?
Speaking of Condenser Fans... My first and second settings on my a/c switch (96-97 dash - 4 point track switch) don't engage the fan, although the condenser kicks on.. the fans dont run... on the higher settings (3 and 4) the fans work fine.. and the a/c snowballs... with the exception of said rattling dash noise.. =/ the switch problem occured after some jackass nerdy kid installed my head unit at Circuit City (I'm lazy... sue me)

Also, Suspension questions:
Annndd.. yes.. here it comes..
alright.. so, the other day I hit a peice of concrete (a boulder to say the least) on IH-10.. anndd.. cracked a 14'' regular ass rim with regular ass tires... it was a big peice of concrete... some ghetto fuck in a 88 bonneville was "riding slow homie" and swerved right before he hit the mother effer.. thus my tailgating him proved not to be such a bright idea... =/ Annnd.. I hit the fuckin thing.. ehhh.. anyhoo.. So.. instead of buying si rims.. or just factory 14's.. I decided i'd go ahead and buy some black 18's with a chrome lip.. Alright.. opinions are like assholes.. I understand the tech. issues with 18's.. I've had my civic for 3 years.. I'm kinda done with the rice-it-up need for speed outlook.. I respect that shit whole heartedly.. but.. ehh.. if I wanna go fast I'll buy an M3.. ya know? (again... lazy)
So the question lies as such:
What's the best possible suspension set-up for said situation?
I want the best ride/handling for my sedan.. I was thinking about a 1.5'' drop. with sway bars, strut bars (rear and front).. I have some adjustable coilover springs.. I understand the 18's are detrimental to the ride.. but, regardless.. what are some techniques I can use to counter that little factoid? It's a sedan, I'm kinda going for the touring/cruising set-up... not the 0-60, take it to the track set-up..
Good shock suggestions?
ALSO, how difficult is the Si 4-wheel disc brake conversion?
I'm not scared to drop about 2-4 grand into my suspension.. throw some info at me..

[240slider]

the noise could be coming from the blower motor which is on the passenger side right kick panel just right above the panel .if your handy it's 3 8mm screws in a triangle pattern remove and clean debris from it and a little w-d40 or other lubricant on the spinning shaft if the fan will eliminate the noise.