If you're designing for a client or just for yourself try using Build.com's ' My Projects' feature to build out your selections, collect specification and product data sheets. You can duplicate projects to create options that stay saved to your account.

When you are ready, you can use their one-click portfolio builder to create a handsome collection of labeled color images of your selections.

I've saved a lot of time as opposed to collecting and assembling individual images off the manufacturer's sites.