LCR camber plates (they don't make them anymore, you'll have to find used ones) or K-Mac (very expensive). Otherwise its SPC, which only add 1 degree but you'll get some more negative camber with reduced ride height.
I've heard good things about KW coilovers, though I have no personal experience with them. Another option is H&R Race springs with off the shelf Koni yellows. It is regarded as the best shock/strut/spring combo for the Focus off the shelf. I ran this set up on my car for a couple of seasons and really liked it. It was also pretty tolerable during dd duty as well.
SPC camber bolts in the rear worked fine for me. In conjunction with the H&R race springs I had about 1.6 degree negative camber in the rear and I was never left wanting more.
In conjunction with a 22mm front sway bar off a Focus wagon and 24mm rear sway bar from H&R the car handled very well and was easy to tune with just tire air pressure changes.
Massive Speed System and FSWerks make front and rear upper "stress" bars. FSWerks also makes a front lower.
For an intake you can't go wrong with an AEM cold air intake.
Tri-State Sports Car Council/Chicago Region SCCA/Milwaukee Region SCCA
Do better every run.
2002 ZX3 (daily)
1990 CRX Si STS (autox)