Add a ogg hard drive with a high sustained throughput as a audio data only drive. Most all current IDE hard drives will give very satisfactory results, especially if it has an 8mb cache. Up until two days ago I was running an Athlon xp1800+ but with 1 gig of ram. I constantly ran 32 + tracks at 24 bit 44k with as many as 75 plugins and filters combined that were activated without problems. I upgraded my CPU this week since I have started running more plugs in real time that are real processor hogs. If your disk activity was going nuts, than it means you need faster disks.