I've been looking into doing some light upgrades on my extra Power Mac G3 B&W. I only do web browsing and the occasional video or DVD. I've been thinking about adding a Sonnet G3 500 off of Ebay or getting a normal 450 and overclocking it to 500. I'm not expecting heavy use so I'll take the risk of the excess heat generation. I've been using my current 400 and 450 and testing out normal usage. The CPU never got hot. I'm not going to tamper with the PCI bus speed. So that's $40-50. The remaining $50 is spent on a Radeon 7000 PCI or a 80 GB hard drive. I can get one off of a friend for $30-40 and it's 7200 RPM. Anymore suggestions? How painful is adding a G4? Are there great benefits? Or should I just stick with lots of G3 clock speed?