If this is your first time lowering your car, i'd go with either Eibach sportlines with KYB AGX shocks or H&R sport springs with KYB AGX shocks. Both lower your car roughly 1.5-1.75" in the front and 1.5" in the back (for my '96 Accord, you'll have to check on what the lowering rates are for your year). It's a nice low, not too low but definitely noticable when you drive. Don't just get springs, which is what I did the first time around. You'll end up blowing your stock shocks and messing up your suspension all together. You probably won't need camber kits with this drop either (which will save you some money). I've had this drop for a year now and no camber kits are necessary. I'm on a 1996 Accord as I mentioned before, and i'm not sure what the 2003 Accord suspension is like. Do your homework before you decide to do any mods and definitely don't cheap on suspension stuff You'll pay for it later, I promise you!!