Yup, you might be interested in checking out our part search API: http://octopart.com/api .

In general there a some hard parts to component search:

- getting complete and accurate data

- setting up a system to store that data in a smart way

- setting up search on arbitrary attributes (text and numbers)

- creating a UI on top of all that

We've been working on the problem of part search for the past few years and we'd be happy to talk.

Wow. I didn't see that. That is almost exactly what I want. It doesn't seem to do computer components specifically but it could definitely be adapted into one or have the capability added later.