The introduction and explanation of the Clone Army creation was sloppy at best in the prequel trilogy (IMO). Not to mention no follow up at all in ROTS on Syfo Dyas and his role in creating the Army.
If you're like me, you've probably thought up a better way that the Clone Army creation could have been explained or shown. I'd like to hear some thoughts, but my only rule is that it would not change Episode III at all.
Basically keep it to the confines of Ep I & II to explain how the Clone Army was created and why.