Are Hensley & Gibbs moulds still available? If so, where can I contact them?

Yes. They were bought out by Ballisticast a few years ago. They still offer all the H&G designs as well as a number of LBT designs.
http://www.ballisti-cast.com
Mark

Thanks for the info. I'm also happy to see some of the LBT designs are available as I knew they where out of business also and was wanting some designs that where unique to LBT.

IMO there the nicest molds on the market!

They should be very nice, they're nearly double the price of Saeco. I'll have to be selective about what I get from them at the prices listed on the website. Thanks again for the info.