The question is very vague...
'High traffic' is pretty subjective, I wouldn't consider the 100,000 per month visits that you mentioned to be high traffic.
Also are you talking about a static site serving a single page or an e-commerce site, which…
I think if you find somewhere you need to make sure that you can review the content at least partially before paying for it, and run it through something like Copyscape to make sure that the same content isn't sold to and published by a lot of other…