Great guide. Very easy to follow. I put in a replacement hard drive in less than 30 minutes.
I recently was trying to replace the hard drive in my Pismo, but didn't unplug the computer. I didn't realize this until after I'd taken out the hard drive. The result was that the computer would not start. The hard drive wouldn't start spinning, there was no startup chime. I replaced the sound card and now it boots and runs fine.