anyone want to share how they make their gourmet flavors. I use an extend a cake box mix to make my cakes and was looking into how I can doctor those into different flavors. and filling ideas and how to's would also be great.

If you do a search for gourmet flavors you'll find a great thread.

This thread (while VERY long) has everything you've ever wanted to know about flavors!!
Enjoy the read! Worth every minute!
http://cakecentral.com/cake-decorating-ftopict-614554-gourmet.html

There is a doctored cakemix section under the recipe tab in CC.

Also, check any post by bobwonderbuns, the signature line has links to the google page with the recipes!