Sparkle, and dresses, and shoes....oh my!

I realized, quite quickly, that I need a wardrobe overhaul. I receive email updates from all these extremely fabulous clothing stored and design houses, however, a graduate student budget could never allow me to afford such fabulosities. So, what do I do to increase the fashion quotient in my closet? Well, it's nothing a trip to the fabric store can't fix...

I need to find some more fabric options for this dress, but I am thinking I might make the top royal blue and the skirt black, then I can add a belt for some flair.

Any ideas on where I can find some good online fabric shops? I am thinking about leaning more towards a silk shantung/dupioni fabric, but I am open to your input.

xo-K