I upgraded Stephanie's computer today with a shiny new Athlon 64 3000+. She's had a 2 GHz P4 for almost three years, so it was time for an upgrade.
Actually, she did most of the work. She gutted the machine and rebuilt it, except for me clamping down the heat sink. Then I f'd around with Windows because it couldn't just do a repair install, it needed a fresh install. I hate that about Windows. With XP I've never had "OS rot" like in the Windows 95 days, but I still upgrade CPU's and motherboards about once every two years, and that's when I run into this.
Anyway, I bought a nice Abit motherboard with an AGP slot because her video card (Nvidia 5700) is still serving her well enough, so no reason to get a PCIe board. That's the third Abit board I've bought in the last year (one for my desktop and one for my HTPC), and they seem to be nice stuff. I love the optical audio outputs and the ton of connection options for USB and Firewire ports.
The chip itself, with the stock cooler, runs insanely cool. Even after messing around in Half-Life 2, it never got very warm. I was seriously impressed. Lower clock speeds apparently pay off there.
At some point it might be interesting to hook her up with the 64-bit version of Windows, but maybe we'll just wait until Longh... I mean... Windows Vista ships. And heck, since most of these socket 939 boards also support the lovely dual-core chips, upgrading will be smooth!