At the end of the day it doesn't matter how good a camera is, if you never take it out & use it.
So I think you need to decide under which sceanrios you are going to use the camera. If you are going to take it out specifically to take some photos, then size shouldn't be so much of an issue, as your in a mindset to carry a camera & take shots. If on the other hand you feel you will be more an opportunist shooter, then the smaller camera is more suitable , as it won't annoy you carrying it in your pocket.
Last thing to note is if you get whichever camera for a good enough price, if you don't get on with it you can sell it on EBAY for minimal loss. I think I sold my F10 for same as I paid, after I realised I used the DSLR more.
So which is it going to be ?
