There are literally hundreds of options for utilizing specific digital signage players when performing a deployment. Hardware alone in this industry can be a time-consuming aspect of any implementation. For the simplest of installations there are a few options which can be very simple and helpful, especially as you try to weave through maze of digital signage players.
The first player I would like to talk about briefly is the ASUS EEE Box. This tiny little bugger (sorry to our U.K. friends who may be offended) is currently used as a digital signage player in hundreds of installs worldwide. I know of several 100 displays + networks here in the U.S. using these simple units. The ASUS player is ideal for installations which do not require a great deal of fast moving, high definition content. While the product spec sheet will tell you it can handle high definition--which is technically true--it poops out a bit as you get into really intense HD graphics. However, there are some newer EEE boxes which have been released which contain updated graphics cards as well as higher, better integrated processors above the based 1.6 GHz. The more robust players can work with a greater amount of HD content.
This unit will run you around $300 and up, depending on the specs you wish to have installed.
The Acer Aspire Revo is another, albeit less expensive digital signage player whose hardware components include the following. This nifty little unit touts the following:
The AspireRevo 3610 is a revolution in computer size, shape, design and affordability. It can stand alone or snap onto the back of an optional LCD that supports the VESA Mounting Interface Standard (MIS), streamlining your personal space while giving you the home infotainment center you always wanted. This is the perfect everyday PC for cruising the Internet, accomplishing your daily work, staying connected via instant messaging, and enjoying photos, music, and videos.

The player comes complete with keyboard and mouse. This unit is very similar to the ASUS box spoken of previously. While it may work well for simple Internet browsing, high speed graphics and slamming digital sign content will most likely require something a bit more robust. However, this unit can supply some great graphics to smaller installs who are looking to save money and keep it simple.
This puppy retails for around
$200.
My third and final unit I would like to discuss is Apple's Mac Mini. Of the three discussed in this post, the Mac Mini is certainly the most robust--giving it the ability to handle just about any type of HD content you throw its direction. Each Mini comes complete with NVIDIA GeForce 9400M graphics processor and a minimum of 2.26 GHz processor and 2 GB of RAM. Upgrade your cost a C-note and you can enjoy nearly double that capacity. In addition, each player can tap into an 802.11 wireless for simple connectivity which eliminates the need to run Cat5 cabling to each signage display. This bad boy is used by both Helius and Nanonation as a standard for installing professional digital signage. This hardware is great for just about any installation.
This rockin' machine retails for about $600, although you can get it with a slight discount (Apple is almost always a stickler about their reseller rates) as a reseller.