Some people, like Madonna, say we're living in a certain kind of world--a material world. Whether or not you're a Madonna fan, check out Gearlog's deals for Tuesday, March 3:

1. Amazon is selling the _blank">Canon PowerShot SD770IS 10-megapixel Digital Camera for only $144.95 today only. Regularly @229.99, the camera has many features, including 3x optical image-stabilized zoom, 2.5-inch PureColor LCD II screen,and face and motion detection technology to automatically reduce blur. Again, the sale only last for today as part of Amazon's Deal-of-the-Day.

2. Save up to 20 percent off of select HBO series at Best Buy this week. Choose from titles like "Flight of the Conchords," "Big Love," and "John Adams." Hurry, the sale ends on March 7.

3. The Logitech Pure-Fi Anywhere 2 Portable Speakers for iPhone 3G and iPod is 30 percent off at Buy.com. Down from $129.99, the speakers are just $89.99 with free shipping. It has a 10-hour battery life, so you can take it anywhere, especially with the included traveling case. The speakers also charge your iPhone or iPod as it plays your tunes.