Kensington believes the world still loves trackballs and, to that end, today unveiled its new SlimBlade Trackball. This latest offering from the company’s Slimblade collection of computer accessories prices around $130.

The Kensington SlimBlade Trackball is said to let one navigate and control digital content through the ball itself, doing such functions as navigation, media control adjustments and photo browsing. It is designed to support a number of major media applications, such as Firefox and Adobe Reader.

Another new Microsoft mouse offering this week is the computer giant’s latest wireless gaming mouse. It is called the SideWinder X8 and it will run you around $100.

The SideWinder X8 makes use of Microsoft’s new BlueTrack technology to offer more advanced tracking abilities. It has a 2.4GHz wireless connection and up to 30 hours of gaming before its battery needs recharging.

Microsoft said this week its new BlueTrack Technology is the world’s “most advanced tracking technology” for consumers and their comptuer mice. Two new mice – the Explorer Mouse and Explorer Mini Mouse – are the first to debut with BlueTrack, pricing around $100 and $80, respectively.

Microsoft says this of BlueTrack: “The large, blue beam and specular optics architecture, in conjunction with a Microsoft-designed image sensor and proprietary pixel geometry, generates a high-contrast picture of the mousing surface that allows exceptional tracking accuracy. The BlueTrack Technology light beam emanating from the bottom of the mouse is more than four times as large as the average laser beam used in today’s mice, enabling reliable mouse tracking even on difficult surfaces such as carpet.”

A new Sony docking station being made available for VAIOs makes use of DisplayLink technology for USB-enabled displays. It is called the Sony VAIO Docking Station (model number VGP-UPR1) and you’ll find it available now for around $200.

The VGP-UPR1, according to DisplayLink, allows Sony notebook users to connect an analog or DVI display to a laptop using USB 2.0. It supports a resolution up to 1600 x 1200 and works with Windows 2000, Windows XP and Windows Vista 32-bit and 64-bit, including support for the Windows Vista Aero interface.

The much chattered about Microsoft Arc Mouse officially made its public debut today, which probably wasn’t the best planning given all of the updated iPod buzz. This slinky mouse will set you back around $60 when it debuts later this month.

The Arc Mouse comes in a thin crescent shape with your choice of black or red body colors. It sports a foldable design which reduces it by almost half for portability when snapped shut. Its micro transceiver, said Microsoft, snaps into the bottom of the mouse using a magnet, sticking out less than 1 centimeter while plugged in.

Fins-Up, a maker of stands for Apple laptops, unveiled what looks to be its first product today. It is called simply the Fin and you’ll find it pricing around $40.

The Fin is quite simply a laptop stand made for owners of the MacBook Pro 15″ and 17″, MacBook 13″ (black and white) and the PowerBook G4 Aluminum 12″, 15″ and 17″. It is made from full aircraft-grade aluminum and is designed to attach to an Apple laptop, tilting said computer to an angle which hopeful is more ergonomic for typing and screen viewing.

Dell, thinking perhaps people have enough interest in its computers to want to accessorize them, teamed up last week with a number of accessories manufacturers to debut its Designed for Dell line up. Seven manufacturers are currently designing Dell products in this new category.

Dell specifically has enlisted the help of Belkin, Built, Creative Labs, Iomega, Logitech, Swiss Gear and Targus. Products being developed include backpacks, messenger cases, computer sleeves, cargo bags, portfolios, headphones, speakers, portable hard drives and mice.