After countless hours of scouring the net looking at these cameras and reading the reviews, I still couldn't make my mind on which one to get. SO...I ended up taking a visit to my nearest Sony store and had a play with them all.
the p100 is the same as the p120 but the p120 is black with additional battery and case. the w1 is nearly the same as these but has manual buttons, normal batteries (aa), is much thicker, bigger screen, which I should note eats up the batteries and is more lickely to get damaged ALSO when you buy a case for it it needs to be thick enough to protect the screen. The guy at the store said the w1 is a test run, where as the p range have always been successfull and a good seller.
the p120 is not much more expensive than the p100 and for that LITTLE BIT EXTRA you get the extra battery and case which would set you back £55 for the battery and £20 for the case.
so.......THE P120 WINS HANDS DOWN!..HURRAH! ill say it agen P120 P120 P120.
THIS IS THE SONY GUY'S CHOICE ALSO, SO I THINK I'LL GO WITH HIM.