Someone asked a couple questions about my fire pit. I did a bunch of research on the Internet when I started the project. For some reason I had a lot of trouble finding information on fire pits online. I still don't have the gas and wood thing figured out.
Think about where you want the shut-off valve. My valve is in the wall of the fire pit. It is a key valve just like an indoor fireplace (that way the kid/kids can't turn it on by mistake). My guys brought the gas line up inside the block wall around the fire pit, then ran a hard line to the middle of the pit for the burner. I don't know if a line coming up in the middle of the pit is better or not.
Here are some of the videos and links I found useful. Feel free to add some of your own.
Check out this Product Brochure: The black/white diagram at the top helped me plan a little.
http://sierraproductsinc.net/pages/pdf/ ... Hearth.pdf
This video shows the York AB blocks we used for my pit:
This is a cool idea too:
This isn't a built-in pit, but it's cool:
And for all you military buffs (and people with lots of cash to blow), here is a pit made out of actual TANK parts: