Don't waste your money on dropzone. Too many people assume Tein is the only answer. They do make good products but they really have done a good job cornering the market so to speak, as many people tend to assume if they can't get Tein it's all crap. This is simply not true.
You don't have to drop mony on teins, but there are other options. First of all, keep in mind that anytime you lower your car you will need new shocks within a few months. The stock ones will blow out, so save some $$ for that after you buy coilovers.
As for coilovers, Skunk2 and Ground Control are the only 2 sleeve type coilovers I would recommend. If you want sleeve coilovers, then I suggest savig money. Dropzone really is crap. The only thing keepig your car chassis in control when driving and turning is what? The suspension!!! It is important to not use crapy products with something impotant like this. I suggest waiting until you have a little more money, say $300-$350. You can get into a good set of Sleeve type coilovers like Skunk2 or Ground Control then.
Skunk2's cost around $338 usually, though if you look around you may be able to find it less. The spring rates Linear rates and are 450lbs/inch front and 350lbs/inch rear. Skunk2's have a 90 warrenty which does not cover sag, though I have never heard of this happening with skunk2's. You can not get custom spring rates with SKunk2, but if you want stiffer springs you can get the 94+ Integra sleeves and they will work. 550 front 450 rear.
Ground Control's cost between $299-$338 depending on what type you get. Normal Ground Controls arn't quite as stiff as Skunk2. However, with Ground Control's you can specify a custom spring rates and spring lengths, so if you desire you can make them stiffer, softer, etc (if you do this I suggest you ask for their suggestions if you are not knowledgable in suspension ). Ground Controls have a lifetime warrenty to the original purchaser, this also covers sag.
If you really can not afford those and can not wait, then get good lowering springs instead. H & R, Eibach and Neuspeed all make good lowering springs within your price range, and all are better than dropzone!!!!
No matter which route you go, you will need new shocks within a few months.
As for shocks later on, Koni yellows are good shocks. They are rebound adjustable. These would be probably the best shocks to pair with the coilovers. They have a lifetime warrenty.
KYB AGX and Tokico Illuminas are also an option and are better than stock shocks. Tokico does stand by their lifetime warrenty, but the car can not be "excessivly lowered." On the HP's this means not more than 1.75" I am not sure about the Illuminas, though if you call them and ask for Ray he can tell you. Koni yellows can handle more of a drop than these 2, but these are more affordable.
Skunk2
http://www.skunk2.com
951-808-9888
Ground Control
http://www.ground-control.com
530-677-8600
H & R
http://www.hrsprings.com/
1-888-827-8881
Eibach
http://www.eibach.com/index1.htm
http://www.eibach.com/cgi-bin/start....ach/index.html
951-256-8300
Neuspeed (They also sell a Neuspeed spec Koni Yellow shocks, which feature a 5-way adjustable perch vs the normal 3-way perch and a 20mm shorter shaft, among other things. Designated by "SP3" at the end of the product code).
http://www.neuspeed.com/home.asp?ltype=ns_import
805-388-7171
Koni
http://www.koni-na.com
859-586-4100
Tokico
http://www.tokicogasshocks.com/
1-800-548-2549
KYB
http://www.kyb.com/kyb.php
630-620-5555
Just for the heck of it, here's their site in japan, though it's the version in english so you can actually read it.
http://www.kyb.co.jp/shock/index.html
http://www.kyb.co.jp/english/menu_e.html