I'm considering upgrading my factory '91 NA6 sway bar to something a bit beefier but after having a look at these sites I'm now more confused than when I started

http://www.fatcatmotorsports.com/FRC_TUTORIAL/FCM_MSDS_TUTORIAL.htm
http://www.solomiata.com/swaybar.html
My car has Tein SS coilovers set at 8 clicks front and rear. Ride height is at lowest legal height (guard to wheel centre - 320 mm front and 335 mm rear).
I was considering 24mm front solid bar/standard rear combo. Is this a good street set up? Also, is there also really any difference between brands?