Creating recipes is not as complex or as difficult as it can seem, I have been creating my own since batch number 2. I would recommend that you get Ray Daniels book Designing Great Beers and study it. Then learn about grain. What I did was buy small quantities and a lot of various types of grain and the different roasts and taste them. Like Rahr 2 row next to Briess 2 row they taste different. Taste different roast and try to imagine how that flavor will be in a beer. Then group several together in about the same proportion as you would in a recipe and taste then all at once. Will give you an idea of how they will combine. Don't just chomp on them, let the grain sit in your mouth a minute or so then chew slowly. Document document document take notes and make sure you understand "YOUR" process completely and "YOUR" equipment completely.
Make sure you pick either a clean yeast or a yeast appropriate to style or to enhance the flavor your looking for. To do that study yeast... I recommend the book YEAST by Chris White and Jamil Zainasheff.
You will find that you can easily write great recipes and brew them. Start easy like a brown ale or a pale ale and then move on.
Hoppy Brewing
George
EDIT: Another book that I like and learn a lot from every time I read it or refresh myself in it is New Brewing Lager Beer by Gregory J. Noonan.
