The Mighty Dracons

Hi All
    I was wondering if anyone else was working on a Savage Species
version of the Dracons and what Monster Class progression did you come
up with. Even if one makes a Dracon a Centaur with Half-Dragon Template
(sans the wings, breath weapon and special quality of being inmune to
one type of damage) with an addtional 2 Hit Dice added in that would be
a minimum of 11 levels of . I like to have some feedback please.

Mark T. Doolan
The Shattered Fractine
http://www.shatteredfractine.com