trung_akahondaluv'er

i got a 96 civic ex and its not lower jus have 17 inch rims...and i wanna drop it and put 15" unstead...so jus want to kno wat kind of rims should i get and how low i should drop it?...and suggestion???.....plus i wanna also kno wat six tirs to..and im kind scard dat da tire"s will hit da fenders......heres are apice of my eg wit da rims...