Microsoft - buy a PC for $1999 or more get a Xbox 360 4Gb kinect bundle.
From the promo
The offer is only valid on PCs (Personal Computers) sold to consumers at a retail price of $1,999 AUD and over and which support DLNA (Digital Living Network Alliance). Personal Computer means either (i) a desktop personal computer inclusive of monitor on the one invoice with the monitor component of the invoice making up the minimum qualifying retail price of $1,999 being not greater than $399, (ii) desktop personal computer without monitor, (iii) All in One Desktop or (iv) a notebook personal computer. The Personal Computer product must also be a retail packaged product.
Offer is only valid on retail purchases between 13.01.11 and 28.02.11 (Promotional Period). Claims are not allowed on back-ordered products or products that are still awaiting arrival into store or delivery to the customer.