It is actually disturbing that there is a need for a desktop software to help you find a Xbox 360 console.

Untitled already released version 2.0 of his Xbox 360 In-Store Inventory Tracker. The tool focuses on only one important task: It automatically checks your local BestBuy, Circuit City, and now Canada's FutureShop's website for In-Store xBox 360 Premium stock availability. No Core systems or bundles. The software instantly notifies you via Desktop, Email and SMS on your mobile phone.

Currently there are several Xbox 360 bundles available on Amazon.com, but there is still now way to buy just the console online. Who wants to still drop a $1,000 on a Xbox 360 bundle with games that in 3 month nobody talks about anymore. Only way to get a Xbox 360 premium console is in brick and mortar stores, why ever.
The Xbox 360 In-Store Inventory Tracker software is available as free download.