Inspiration or Stealing?

I am new to designing websites (professional ones at least) and I sometimes have a hard time trying to create a website. In this case I usually go to different site's like TemplateBox and TemplateMonster to get "inspiration" and idea's for websites but sometimes I tend to make a template that similarly resembles the one I had in mind... my question is: Would this be considered stealing and would it at all de-grade my selling point? Like, would it be grounds for somebody to want to pay cheap because the template is somewhat a re-make of one already made?

Thanks for the help?