I'd be more than interested in playtesting. I playtested for Big Eyes Small Mouth first edition. Additionally I have been playing RPG's for 16 years. My experience is as follows:
Beginner-Expert-Master-Companion Set's D&D
Advanced Dungeons and Dragons First Edition
AD&D Second Edition
D&D 3.0-3.5
Rifts
GURPS
Big Eyes Small Mouth First and Second Editions
World of Darkness RPG's (Wraith, Vampire, Changeling, Werewolf, Kindred of the East, Hunter, and Mage)
Shadowrun First, Second, and Third Edition
Furthermore I am working on converting Hollow World (from Basic-Expert-Master-Companion D&D) to D20 rules.