questionscan i enter a product name and be notified when…

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add ".rss" to the end of the URL you get when you search. Then you can subscribe to that feed.

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To clarify a bit: If you add .rss after "deals" (or "questions") in the search results URL you'll get an rss feed with those search results. Like this:

http://deals.woot.com/deals/search?q=camera
turns into
http://deals.woot.com/deals.rss/search?q=camera

You can do more complex searches, too:
http://deals.woot.com/deals.rss/search?q=%2Bcanon+%2Bcamera+-printer

Or even tags:
http://deals.woot.com/deals.rss/tagged/digital-camera