Need program to alert me when low price item found on amazon

IN PROGRESS
Bids
6
Avg Bid (USD)
$458
Project Budget (USD)
$30 - $250

Project Description:
I need a software program that I can enter some items for it to constantly watch amazon, ebay, and craiglist for. When someone posts that item for sale in a given price range that I can input, the software will email me or SMS me to alert me.

The software needs 3 different tabs, one for amazon, ebay, and craigslist.

It needs to check if someone has posted the given list of items every so many seconds ( i should be able to specify the time delay).

Skills required:
C Programming, C++ Programming, Software Architecture, Visual Basic, Windows Desktop
About the employer:
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