I bought a Powerleap adapter to keep my old trusty 440BX-based rig relevant. I've had a 1.4GHz Tualatin Celeron running in it for over 6 weeks with absolutely no problems. Installation took 30 minutes and everything worked on the initial powerup. I didn't even flash to the latest BIOS beforehand. The adapter and CPU set me back $120, which some may flinch at, but what the heck do I care? It works and my PC is noticably more usable. The 75% boost in clock speed and the doubling of L2 cache was just what the doctor ordered.