I use sitetail, seoreviewtools and woorank (expensive but worth it, $149 for 5 sites monthly or $49 for one website monthly).
Hey, never underestimate the power of this one: http://keywordtool.ulancer.com All you need to know about any site. Is it on the first 10 pages of Google (and I guess Bing)? Seems like it's the only thing that matters today.
I am using add-on like WebRank SEO Toolbar,Seoquake approx one year this is best add-on and its free.