[Suicide Junkie]

For an office system, you don't need more than 400Mhz, win95, and 64 megs of ram for smooth operation.

Presuming, of course, that you don't lump in gaming above solitare in "office work". And of course, since SE4 runs fine on that system, it is sufficient for a gaming rig as well.

With a decent video card, win98, 700Mhz and a bit more ram, its also good for SE5, and thus is good as a gaming rig well into the next 5 years.