what kind of riding do you do? if they are for woods/trail riding you could go with the razr 2's or ITP GNCCs....we run both of those, depending on the conditions...
if you do primarily MX tracks, stick with the razrmx.
Wheels, you can prob. get away with regular steel rims...if you compete, go for a more expensive that will help seal the beads, like Hipers or Beadlocks....
Just a thought.