I think that the thing about booleans is that if you start simple you can quickly work up to complicated.

I seem to remember a quote from a sculpterer. It went something like this:
"The statue is already there in the rock. I just chip off the parts that aren't the statue."

If you find the idea of booleans worrying, just create a cube and make it positive. Then create a cylinder and make it negative. Set the cylinder into the cube - doesn't really matter where - and group! Observe what happens!

The possibilities are endless.

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All the Woes of a World by Jonathan Icknield aka The Bryster

And in my final hours - I would cling rather to the tattooed hand of kindness - than the unblemished hand of hate...