when we tiled the worktops in the house kitchen, my husband sunk in an 18" by 18" peice of burma teak for a chopping board. May seem a little extravagant, but we got a shed load for free!!
Brotherinlaw used to work at the vet college in Edinburgh and when they were re-vamping one of the ancient labs, they threw the work benches out to the skips. Can you beleive it
It sits about an inch proud of the worktop and i love it. It just gets the usual antibac after use ( raw meat and sweet stuff have their own boards) And they get scrubbed with salt for a deep clean every couple of weeks (butchers tip)
I've never heard of bamboo boards. I'll reserve judgment till i do.