In that case, I'm a bit middle-of-the-road. My I3700 was perfectly fine for what I was doing until about beginning of '03 - six months before the extended warranty ended - and that was a Celeron 466 (then again the most it was playing was Civ 3 or D2, though it could play Half Life OK

).
My current desktop is a non-HT P4, with an old GeForce 3 card, and games like Uru and Renegade are perfectly happy with it. I suspect that part of that longevity is the LCD monitor running 1024x768, but it's a nice screen and have not yet found a 17" LCD for the same price as this one, while also supporting DVI.
Though I have interest in Doom 3 and/or HL2, I'm sure even my desktop can handle it fine for now.