I appreciate the suggestions, but none of these bands sound very 70's classic rock ala Zeppelin and Humble Pie. They are more 50's and 60's sounding.
You're describing quite a large proportion of my journal! (I'm not intentionally plugging, it just keeps becoming relevant!)
Here, I scraped them out for you:
The Honey Pies
The Soft Pack
Joe Gideon And The Shark
Powderfinger (IMO)
Tame Impala
Deep Sea Arcade
Driving Control
Hell City Glamours
The Snowdroppers
The Drones
Bonjah