With events like halloween and any other time you feel that it would be cool, here is a two part turoial on how to create a fire look with your text. It is a very simple step by step tutorial to help creat a believable fire effect. With the same technique the options are endless. What ever you can come up with

Part 1
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http://aftereffects.digitalmedianet.com/articles/viewarticle.jsp?id=33947

Part 2
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http://aftereffects.digitalmedianet.com/articles/viewarticle.jsp?id=64197