Quantity Tracking Professional v0.1 beta (prereleased). Enables you to define quantity for options of a product. For example, allowing you to not only keep track of quantity of a particular item, but also it's options.
This is a beta release, you can try the online demo. If you decide to download the beta, please note it is not complete and I am estimating another 7 days before it's actually finished and the first complete version can be released.
Fixing: The Product Info page still needs a little work aswell as the Stock Page.
Let me know what you think,
Joseph S.