nat3r, Market Samurai is the one you want to get. It's cutting edge. When you use Market Samurai to research for a niche, you'll be glad you saved all that time that you'd have spent on manual research. You'll get from Market Samurai in a couple of hours what it take at least days to do manually.
You can get a 12-day free trial, & make sure you begin it when you've got a good window of time to spare so that you can really go to town driving this software & explore what it can do for you. It is truly awesome.
Now for the offer: if you sign up to the free trial through the link on my site you get into the special promotion funnel: during the first 7 days of your 12-day trial, you can buy it for $97. For the next 5 days, it's $127. Once the trial has expired, the price goes up to the usual $149. And this is a one-time payment, no upsell, and you get the upgrades for free.
My site is devoted to Market Samurai Resources and Reviews, and the current top post gives great tips on using the first part of Market Samurai, with clear screenshots. An earler post was a list of Market Samurai videos to be found around the net. Many of them by people who are giving pretty good free training on how to use it.
I can't recommend this software enough. Give it ago. If you don't like it, you don't have to buy. The link to my site's below, and my Market Samurai links are on the right of my webpage. If you don't want to use my link, then google for the developers' main site (where you may have no option but to pay the full $149 price.). Salut.
See you over the other side.
Isha