I own 40+ core rule books for different role playing game systems, and probably over 150 total role playing rule books counting various supplements and adventures. Most of my actual play experience is in Dungeons & Dragons 3.5 and Savage Worlds (various editions and setting supplements), but I have also played various implementations of Fate, A Song of Ice and Fire from Green Ronin, Warhammer 40k: Deathwatch, and new World of Darkness.
I am also a compulsive researcher in my free time. I discovered this site fairly recently, and have referenced it already on several occasions. I hope to be able to contribute back to the community should I discover any questions with which I can assist.