The OME are lift springs.

If you want to firm up the ride, get the Bilstein strut replacements and these load levelers for the rear and you'll be set. (Or you could remove the spacers and install the OME lift springs instead)

Edit:
Actually, try these shocks in the rear first before changing anything up front. After i installed mine the ride greatly improved... no more "floaty" feel. And when you hit the gas when the light turns green, the rear doesnt squat down before moving forward anymore lol.