Here's the Kel Tec RFB
Kel Tec RFB video Cost was still over $1000 if I remember right, and not do out till 2009.
Have you ever shot a bullpup? I was interested in getting a AUG intill I put a little trigger time behind one. reloading is awkward and slow, and most models will shoot brass into your face if you need to swich to your weak hand. (KT has eliminated this problem with the forward ejection, a copy of an HK design if I remember right.) Find a place that rents any bullpup, or allow you to do some reload drills with a new one before you drop the $$$.