I'm getting a new camera and the range and array of options is a bit bewildering!

I don't need an SLR and I want something small and easy to carry around. Basically that I can take anywhere to capture moments as I see them, but I also one that is a good holiday camera, and that I can take indoor shots at parties or social occasions. I don't need too many really complicated features but I would like some controllable settings.

Went through reviews online with a friend last night and these are some of the ones we've shortlisted to look at. Would appreciate any feedback if anyone has/knows about any of these, or has any other makes/models they think I should take a look at?

Canon IXUS 120 IS
Canon Powershot SX200
Panasonic Lumix DMC - TZ7
Canon Powershot SX210