'posh' buffet ideas

I am planning on doing a 'posh' buffet for a family party. I want it to be a hot and cold buffet but a 'upperclass' one, not your typical party food.

However I'm used to the latter!

So ideas will be welcome, I am already planning on doing a whole salmon as the centre piece... but thats as far as I have got.

All ideas and possible recipes welcome - thanks!