Thanks so much for everyone's input on my questions below. Based on the advice receieved, we have revised our plans down to spend much more time in San Francisco rather than trying to fit EVERYTHING in in one visit!
We figure (at the moment!) that the Wednesday we arrive we just wander about in the afternoon, maybe jump on a hop on hop off bus to get our bearings. We'll then spend all day Thursday exploring the city either by an organised tour such as Dylan's, or again the hop on hop off bus. Friday is the day we originally planned to do the Monterey / Carmel organised tour but we are thinking this may be a bit too tiring now. Does anyone have any opinions on the best way to get Pacific Coastline views, that's not too far away from the city and without using a car / relying on local transportation / organised tours? Would a wine tour be a better idea? Forgive my ignorance if my geography is off!!!
Saturday we plan to visit the Farmer's market and the pier areas, maybe a bit of shopping / bay cruise / cable cars etc - whatever we feel drawn to. The same applies to Sunday before we fly home early eve. As you can see, we've dropped our plan to visit alcatraz this time round as with everything else we want to do, i think it will be too tiring / cold for me - i'll just have to come back won't i?!!!
Thanks in advance for any advice on the views... i've never seen the Pacific Ocean and just want to make the best of the rugged coastline while i'm here!