jenny, there is a lot of info on www.biobees.com.

http://www.beesource.com/forums/forumdisplay.php?f=254

Thankyou both for the sites. I have been to both. Do you both have them and can you give me more hands on info? Thankyou Jenny Also if anyone lives in the Mid-Coast Maine area. If you are interested in be a mentor, I am starting a farm and would love someone to speak with

Sorry I dont have any top bars but have thought about it.

jennybog,
I've experimented with and used TBHs before. You can find photos of my TGHs on the flickr photo website (under 'txbeeguy'). If you have specific questions, I'll be happy to try and answer them.

You appear to have not kept bees before; if this is correct, I'd recommend you do a little reading first and find out about some of the 'technical' aspects of beehive design such as the important concept of 'bee space'. There are a few other important considerations that are different between the standard Langstroth hive design and TGHs.