I'm thinking about it. I have an i7 920 overclocked to about 3.56 GHz w/12 GB of ram. I realize most other things wouldn't show improvement, but I'd like to think the AE rendering time would vastly improve.
And then there's nights like tonight where I'm not rendering or working on any raw stuff, and my machine sits idle.
Anyone done any research on the most "bang for your buck" rendering machines? Is it Hexa-core? Dual Xeons?