The number one problem I have with SE nuke is the price, it's just too damn expensive. Also, I've noticed that a lot the WEB 2.0 articles are not being indexed...
For adwords, target the USA
For SEO, sign up for a google webmaster account and target your site to the USA. Also, make sure the site is hosted in the US and the contact page has a USA address (you'd be surprised at the difference it makes)