Digital camera

[pcurtis]

Hi all
I'm in Perth for a day and wish to purchase a digital camera.
To save a lot of mucking around, I thought I'd pick your brains!
Anyone have any suggestions as to a good buy by any chance, I'm not a camera 
buff and just need a standard camera, point and shoot type.
There are plenty around, 5 mega pixel, 3 Optical zoom, about $400.
Are they all much of a muchness? Should I just grab the cheapest around? or is 
there more to it than that?
Regards
Peter