What kind of processing power do I need to stream HD content. Currently I have the following Hardware specs:

Intel 3.0Ghz hyperthreading
1 GB RAM
Gigabit backone network

I have the software version 0x1D4 installed on my HR20. I am playing a HD-DVD movie encoded into a WMV file. When I play the video I get alot of stuttering and my media server is pegged at 100% CPU utilization.

I have the following set in my transcding settings for Tversity:

When to transcode? Set to "Only when needed"
Maximum Video Resolution Set to 1280x720
Decoding Speed: checked
Compression: Set to "Minimum"
Optimization: Set to "Quality"
Connection Speed and Quality: Set to Wired 100

I have another AMD box that I was thinking of upgrading the CPU to an AMD
Athlon 64 X2 4200+ 2.2GHZ 1MB Cache Dual Core

The box has 1 GB RAM
Does anyone have any thougts?

Thanks