I've been lurking for awhile, gathering info to build my first forge and wanted to post this to say thanks, to everyone for all the info and ideas that have been posted on IFI.
I used 14 2300 insulating fire bricks for the entire forge, the top and bottom are pressed together with strap and allthread to make it easy to repair/replace bricks. You can't see the bottom but it is comprised of 5 bricks stood on there side to give more insulation for the table. I built 2 burners to go with it, a 1" side arm burner thats the one in the pics and a modified version of frosty's tee burner.
I'll get some pics of the 3/4 burner running and specs for both burners posted up alittle later.