Friday at the Hideout on Norton is awesome. Detroit garage '64-'67. http://www.discogs.com/Various-Friday-At-The-Hideout/release/1695095
Monsters of the Midwest series is also a really good 60's garage comp. I recommend Volume 4: http://www.discogs.com/Various-Monsters-Of-The-Midwest-Vol-IV-Lost-Tracks-From-The-Action-Sixties/release/3974365
Searching in the Wilderness is one of my all time favorites. It's a comp of 60's Europe garage rock. Really great stuff on here. There's an interesting track by The Kinks from before they called themselves The Kinks. http://www.discogs.com/Various-Searching-In-The-Wilderness/release/3419596