Not all topics are going to get you thousands of hits a day. Before you go into a lot of work find out just how many people actually use the keywords that relate to your topic. I tried every trick in the book to get more traffic and got frustrated because I was only getting
3000 uniques a month, until I found out that actually only about 6,000 people used all the variations of the keywords related to my site. I then just fine tuned the keywords on my site to less used keywords I hadn't covered before.