It is always a good idea to break the business apart.
Sure, it's extra work for the accountant and a bit of work for you but in the long run you are more "protected".

There are still a lot of "christian conservatives" that WILL not work with any companies that do not support their own view of life. If you only want to work with people that are open minded then it's not a issue.

Or..if you build up one division and and to sell it you would be able to only sale the one division or the other. You will have more chances to sell to more people.

Steven