I like Iron Butterfly. I only have "In-a-gadda-da-vida" and "Light and Heavy: The Best of..." I also have a weird vhs tape called In-a-gadda-da-vida and it has three videos on it for the title track and live renditions of Easy Rider and Butterfly Bleu. Light and Heavy though is fantastic, Soilder in Our Town, Easy Rider and Stone Believer are just some of my favs off of that disc. Great band I would love to explore them more.