Hmmm I just checked my Task Manager I have 54 processes running, and my CPU usage is appx. 2% - 17%.

I have an 80 gig hard drive, but in reality I only get about 72 gigs out of it. It normally has 30 gigs free, so I defrag it twice a week now. It makes the machine run quicker and more efficently.

It might be you have processes running in the back ground. ie Peer Guardian 2. Before I upgraded the previous version was constantly running the CPU at 47%. That was also before I upgraded the java to update 2. There might or might not be a relationship there.

It wouldn't hurt to update your java, and defrag your hard drive.