LOL! Another fabric junkie is born! Welcome to the sickness! Looks like you have a serious case- a lot of big names in there.
Is this quilt going to be all strips? Are you making it up as you go? Congratulations to you for jumping right in and designing your own with your very first quilt. I have a feeling this will be the first of many... gotta have an excuse to buy all that fabric. :0)
I agree with purples for the middle, but really, you are doing a great job on your own with picking colors and fabrics.
I wouldn't worry one little bit about doing things the "wrong" way. I am a bit of a rebel quilter myself- I make all my seams 1/2" (which means that I design all my own quilts, too). There is nothing at all wrong with doing things your own way, and lots of times, everything right. It's great to think outside the box! I love it! Can't wait to see the finshed product!