Welcome aboard.
As for retarded questions .... we all started somewhere ...... (So you get 5 free, then we start to charge, especially if there's a thread on the subject ... )
And, finally, when it comes to the wheels, lots of threads on the subject, but your decision needs to come down to the following: Tire Size and Offset.
What you need to do is try to size to te stock tire size if you're interested in odometer acuracy. If the tires are smaller than stock, your odometer will show you going faster than you really are (unscientific measurements indicate about 1-2 mph for the first .5 inch, not sure it this scale linear or not.). The bigger the overall size, the more your odo will be off in the opposite direction.
Many of us have gone 19" or 20" and just adjusted the tire height to accomodate springs (not really intentionally, but none-the-less, you should consider it when chosing to lower or not.) The more tire height you have on top of wheel size will limit your ability to drop or not, along with the offset.
From what i've seen on the threads, best safe offset is +45 on the wheels for a drop, but there are NICO members who have as little as +35 Offset and have dropped their rides.
Here are a few threads on the subject that might help:
1) Discussion on Wheel Size choice:
zerothread/313502
2) Sizing Guide/Discussion:
zerothread/306835http://forums.nicoclub ... ?id=315198
3) Concerns/Experiences about dropping:
zerothread/315692http://forums.nicoclub ... ead/315616
4) Eibach Group Buy (In Progress right now):
zerothread/309984
5) Installation Help:
zerothread/313730
Eibach Proline Springs rate a 1.5 inch drop in the front, 1 inch in the back.
There's a lot on this forum on the subject. Hope this helps,-- Wind
P.S. - Take your time, check twice, don't get caught with a Wheel/Tire/Srping combination that won't work.