Moving to beads - Advice needed

After using the dreaded kat litter for over a year in the 20 bottle wineador, I've decided to make the move to beads. Not that the litter didn't work, just looking to upgrade after hearing good things about humidification beads.
Could you all help a brother out and tell which kind of beads you prefer and why. I know there are a few different kinds out there and honestly, I'm a bit confused as to which to go with. With the kat litter, I just had to push the damn cat out of the box and fill up the Wineador bins! . Think I'm gonna miss those 'clumps' though!
Oh yeah - the interior of the wineador is 12 x 13.5 x 18 and it looks like I only need 8oz of beads, if I got the instructions correct.