If you have access to open court books, the green band is actually pretty good for phonics instruction. It is a good place to start if you have never taught phonics before. You can also go to opencourtresources.com to get some powerpoints for your lessons. I'm not sure about flipcharts!
When I'm looking for a PowerPoint presentation I go to http://www.pppst.com/themes.html. There are thousands of topics a-z and each link brings you to a page with powerpoints and game sites on that topic.
There are many other links and files in the archives of Phonics Matters http://groups.yahoo.com/group/phonicsmatters
You have to join the Yahoo group to be able to access them, but
there is no fee to do so and you can unsubscribe at any point.