Trademark

[magicmike]

I am thinking about trademarking my name and logo cause i do plan on expanding. I am wondering if anyone has did this? Should I spend the money to do this?

Also there is another company named the same as mine in another state registered as a LLC under the same name as mine but in another started but they have a service mark near there logo but i did a trademark search and there is no trademarks of any kind under my business name, does a LLC automatically register as a trademark (service mark)