What boards are you going with? The more I see the laminates, the less I like them...
The way they install natural timber is interesting... Seal the slab, fix yellow tongue to the slab, then install the boards on the yellow tongue...
You lose about an inch of ceiling height, but have a "proper" timber floor without there hassle and extra cost of a dropped slab and joists
Deciding on the floor has been one of the toughest decisions for us.
We made up our mind a month ago to go with laminate.
In the end the fact that you can't seem to scratch the surface won us over.
We currently live in a 60's home with polished floorboards and the boys have destroyed it (and we think we're careful).
Really depends on your circumstances and how much you value style/trends vs practical considerations.
Even with the laminates, the dark colors seem a lot more popular in the displays, however, they seem to show foot prints so much more than the lighter color laminates.
With real timber boards, I've heard of direct stick, nailing onto batons and laying ply down and then nailing the timber boards into the ply (or in your case yellow tongue).
Interesting to see what you finally decide on.