Canon Powershot A80 vs Nikon Coolpix 3700???

[r_yapeter]

I've been looking for digital camera for a month now.
Basically i need a camera which cost around AU$700 or US$400. Which then i spot Coolpix 3700 and wait til it come out. Just few days ago i see review on Powershot A80.

Which do you think will work better. I don't really need video but it's nice to have one. I like to take photos and hope to have camera at all time including not run out of battery in middle. And i also like night photography.

I also read that Powershot A80 can use lens converter. what can this converter do? can i use 52mm lens with this converter?

PS: if any of you live in australia. could you tell me which is the best time to buy one? boxing day, before new year, after newyear?

[r_yapeter]

forgot to add. I also like to catch photo when people don't realize it. i heard canon is pretty slow at starting up. how about the speed on focusing