I posted last week about ordering a butcherblock from theboardsmith.com. Well it came in today and I must say I am impressed. I ordered the mahogany board and couldn't be happier. These pictures are terrible and there is a funny glare on them. But, it's the best I got:
The Boadsmith treats it with mineral oil and beeswax before he ships it. His recommendation is to use food or pharmaceutical grade mineral oil when it start to dry.
With it being end-grain, it will stand up to a lot of abuse. Also, if it ever gets to looking rough, you can send it back to him and he will sand and refinish it.