InsideRIA posted an article about Flex Builder Enhancements. I am already using the TODO/FIXME Plugin by Dirk Eismann for a long time now which works really cool.
I did not know the Snippets plugin which I now also tried out. The usability is not that straight forward but it also does the job.
If you like to import my snippets.xml which includes a for loop and a bindable getter/setter.
Welcome to the world of Eclipse my friend.