Jamie2112 recommended My Morning Jacket, Wilco and DBT. I second those recommendations. I would add, that for somebody with 60's-70's classix, the Drive By Truckers have a mystic connection to old Southern Rock, especially Lynnyrd Skynnerd. Their Souther Rock Opera is an epic piece of southern rock. Wilco is descended from Uncle Tupelo, another noteworthy band from the 90's; their No Depression album is great. After a big split, the rest of Uncle Tupelo ended up in Son Volt, another loud, jangly guitar band that's worth a listen. Son Volt is more of a basic rock band than the Radiohead like work of Wilco. I especially recommend "The Search" and "Okemah and the Melody of Riot", which are excellent.
