Thanks for the replies. I think I'll make my way to jessops, maybe with my 512MB CF card and take a few shots with both.
I did consider the A2, and it has some really good features, but its that much bigger. If I was going for this sort of camera I'd probably go the whole way and go DSLR.
Its good to hear that 28 might be more use than 280. Its true that my Oly has difficulty at times like Xmas when we are all crowded into a room and I'm trying to got shots of the children opening presents!
I guess I could always go for the extended telephoto adaptor if I wanted the extra zoom.