Anyway here's my choice for now off the top of my head:

Sunsine Of Your Love - Cream
All Along The Watchtower - Hendrix
See Emily Play - Floyd
Meet On The Ledge - Fairport
Positively 4th Street - Dylan
Volunteers - Jefferson Airplane
October Song - Incredible String Band
Black Magic Woman - Fleetwood Mac
I had Too Much To Dream Last Night - Electric Prunes

That was what I thought of at this moment, probably a completely different list later!