Welcome to the Guild Clockwork Druid! Be sure to post up some pics of your project once it's underway.
I have been on this site many times and finally decided to join. I am new when it comes to mapping but from what I've seen this appears to be a rather friendly and helpful community. The maps I've seen here are amazing and eventually I may get around to posting some of my own maps.
Currently I am working on a project that includes importing Gray-scale height-maps into a 3d engine so if there is any resources or help concerning the creation of height-maps you can share would be greatly appreciated.