Great interview between Shawn Collins, the king of all affiliate trade shows and Wil Reynolds, the Master of all thingsSEO. The two come together to share some quick SEO tool recommendations including:
Raven Tools (well known keyword research tool set)
Authority Labs (Provides text, video and images ranking to complement keyword ranking info).
SEO Moz - Wil raves about open site explorer as a method for comparing the value of each site and the links they provide.
Google Suggest - keyword suggestion tool built into browser
UberSuggest - for keyword suggestions
SeedKeywords - to query potential keywords from friends
Soovle.com - enter a keyword and see what comes back when it is used on a variety of search and retail sites