2008 MP worth it?

This is the early 2008 model, with 2 Xeon Quad Core 3.0 Ghz Processors. For a total of 8 physical cores operating at 3.0 Ghz each.

12 GB of 800 Mhz ECC Ram.

A single 1TB 7200RPM drive with OSX Lion (10.7) installed.

Also has a 1 GB ATI Radeon 4870 Installed for even faster photo and video editing.

Asking 998.00

Is this a good deal?

or should I buy a mac mini?

Some gaming and web development.

Thanks