Here's a blog with lots of great color inspirations. http://www.design-seeds.com/ Just scan through it, find some that speak to you, and create a folder (or print out) those palettes for future inspiration. From there, you can either work from your stash or buy fabrics that will go with that collection of colors.
Another way to come up with current and pleasing
SEWING MACHINE GALLERIES
VIRTUAL SCISSOR MUSEUM
STUCK ON PINCUSHIONS
PEARL BUTTON MUSEUM
INTERNATIONAL SEWING MACHINE COLLECTORS