DD-WRT-Scripts is a project mainly written in ..., it's free.
Misc scripts for DD-WRT (QoS, etc)
Some DD-WRT Useful Scripts (WIP)
For now only a HFSC and HTB QoS Script
Based on works by
HFSC: Maciej Bliziński, http://automatthias.wordpress.com/ HTB: wondershaper (www.lartc.org)
I'm mainly testing on D-Link DIR-600 b1.