yea iron butterfly's ina-gadda-da-vida would be a good one. electric ladyland is a another good one. but i never realy considered zep aerosmith or skynard as psychodelic. another good band wood be velvet underground. also the monkees and the beach boys done some psychodelic stuff. most notably would be head by the monkees and smileysmle by the beach boys. also frank zappa. and the strawberry alarm clock , mc5, litter, sopwith camel , soft machine ,and the 13th floor elevators. all these guys are from the late 60s. but there has been a reoccuance of psychedelic music recently withbands like umphreys mcgee, rusted root, ekoostik hookah (you can down load there music free at ekoostik.com), the recipe, and many others