If you can live with 16" wheels, the RSX wheels only weigh 16 lbs. Have them on my Accord, definitely noticed the weight reductions (OEM 7 spoke EX-V6 wheels are about 25 lbs each) right off the bat, better low speed acceleration and noticeably better braking. See them regularly on craigslist for $250-300 with tires.

Look pretty good too, lot better than the wheels it came with...easier to clean too!