What is the best way to get affordable, targeted web traffic?

I have a web site for my local transporation service that get's about 800 hits per month and generates many new customers. I'm trying to do the same thing with a site in the vitamin industry. Key words are much more competative and expensive. Any sugesstions?

Best way to get targeted traffic is google

Guest Post on blogs which are related to your niche In your case you should use Google to find blogs which are blogging on vitamins there Guest Post.

if u understands GoOG adwords, it can provide you very cheap traffic with some unbelievable conversation..

@poster, what is your targetted area? If Pakistan, I can help, as my site has 4000 avg/munth hits, but mostly Pakistani traffic

you are wasting your time. She was a spammer and will never come back.

Well I think its just a spamming post trying to get back links only.