[REQ] Keyword Research TOOL | web 2.0 creation and submission and etc.

I know there are lots of tools that can do keyword research, that's why I'm confused of what to purchase. I'm creating a "to buy" list tool. I need 5 tools that will help our marketing. I already have Ultimate demon, scrape box, GSA, get article pro, The best spinner, article scraper chief, proxies (ofcourse), semrush, majestic seo, keyword reaper, seomoz. First is I need a tool for keyword research. Any suggestion? maybe sellers can promote their products here in my thread. Next is I'm planning to purchase a tool that will create web 2.0 profiles,and blog post (same like ultimate demon article submission), I need suggestions. and i already made searches in the forum and in google and i'm really confused.