You might not need your Apple TV anymore. The new Mac mini features a built-in HDMI port allowing you to connect your mini with your HDTV. An HDMI to DVI adapter is also included.
Upgrading the Mac Mini looks A LOT easier than previous models (no puddy knife required) with a rotating stylish cover on the bottom of the unit. (See pics below.)
The graphics processor in the Mac mini is the NVIDIA GeForce 320M (48 processing cores) and comes standard with a 2.4 GHz Intel Core 2 Duo processor, 320GB hard drive (5400 rpm) and 2GB of RAM (expandable to 8GB).
The Mac mini also comes with a 8X SuperDrive, SD card slot, AirPort Extreme wireless, Bluetooth, four USB slots, one Firewire 800 port, and Bluetooth. All that for for $699.
A Mac mini with Snow Leopard Server (2.66GHz, 4GB RAM, Dual 500GB) will retail for $999.