As mentioned previously, I have put together a new computer. I dropped an AMD 'Barton' 2500+ on to a motherboard called LAN Party NFII Ultra. The compelling features of the MoBo were built in RAID and high speed FSB. It also has two LAN ports, surround sound, and all of the other 'cool' features that it should.
With 1.5GB of memory and more than 300GB of HD space, I've got some room to grow. I've partitioned the drives into seven segments to keep things better organized and to make backing up easier. Also, in that I've dedicated about 100GB for creating virtual PCs to use in development or general experimentation.
One thing that I found fascinating after building up the machine was the weight. over 50 pounds of PC in one tower box. Not exactly a portable machine .
Finally, maybe the most enjoyable new aspect is the addition of a third monitor. As previously discussed, I've been using two monitors for several years. Now, I can keep the 'monitoring' apps (IM, ActiveSync, Process Explorer, etc.) running on a third screen and use the full resolution of the other two for email, internet, debugging, and all other primary tasks.