TeamXbox.com has posted a review of a VGA Adaptor for the XBox which allows you to connect your console to your computer monitor. Here is a snippet of the review:

Since the day the Xbox was announced, gamers have been dreaming of the possibility of connecting their Xboxes to a PC monitor. In fact, there�s a VGA petition we started a few months ago, requesting that Microsoft develop a VGA adapter for use with the Xbox. The most advanced graphics console on earth, capable of high-resolution output deserves the right to be connected to a computer monitor. 1390 gamers have already signed the petition. Today we�re previewing the first VGA adapter made specifically for the Microsoft Xbox video game system. This device (I�ll call it the X VGA Box) allows you to connect your Xbox console to a computer monitor. The X VGA Box is a very small accessory, much in the size of the A/V packs, comes in a transparent dark black enclosure and it�s smaller than an standard Xbox controller. Well, I don�t know if that�s a good indication �

You can read the rest of the review here