My personal favourite computer is ...
a 486 DX 100 with 48 MB RAM, running Windows 95 B with a 33.6 Kbps external modem. I paid $AU 20 for the computer, and upgraded it in various ways.
So we have crossed the 3 GHz barrier; anything less than 256 MB RAM would obviously be useless, and if you can find a HDD smaller than 60 GB, it would be in a second-hand shop.
From earlier discussions, it is obvious that most TR regulars have a personal favourite computer, for their own use, and which does the job and to which there is a sentimental attachment.
So let's hear about your personal "pride of the fleet." Incidentally I do most of my work on the above described machine, including running three websites. AOL hate me because I am using version 4.0 (which is very stable) but it is supposed to be extinct, and all good little AOL members are expected to use version 7.