We are a Link Building Agency and offer special Link Building for Gambling- Casino themes. Actually we can do your work very easily as we own a network of 100 + sites so that we can get links very easily by exchanging and by all other methods. All links will be oneway.
Some examples of sites-
http://www.hotonline-casino.com
http://www.onlinecasinosource.net
http://www.playking.org
http://www.vipcasinorooms.com
http://www.online-gambling-source.net
Let us know if you need any more information. If you are very specific with your requirements then tell us too, we can make a good plan for you.