allyli, welcome to the forum (from a relative newbie, but welcome nonetheless).
Check out the search function: it will bring you loads of information.
afaik, sport lowers 15mm from standard, and S-Line lowers another 10 from that, for a total of 25mm lower than standard.
Standard, Sport and S-Line each have their own spring, damper and anti-roll bar specifications, but they all share the same suspension design and geometry.
Seriously, do a search and you'll get loads of interesting reading ;-)