Still have my first computer - a Leading Edge Model M. With dot matrix printer, and CGA color monitor, it set me back $3000 in 1984... but it was instrumental in leading me to a new career in the IT world... which lasted about 15 years.
Some time later I started building my own systems, starting with 386 motherboards and then up to the most recent, a Pentium 4 machine with Nvidia graphics card. Have a Pentium Dual Core motherboard, processor, and chassis waiting for me to build it up as well, but am in no big hurry.
I built a lot of Novell file servers, and still have all of the ones I created for my home lab, as well as a Linux system that was fun for a while until it decided it would no longer talk to my monitor ;-).