I purchased a Western Digital EIDE Hard Drive with 320 GB capacity a few months ago. I was running out of room on my existing hard drive for my PC Desktop, and wanted to upgrade.
This hard drive installed easily. I had no problems with compatability and I was up and running in no time. This hard drive has SO MUCH storage room on it! I'm a maniac with the digital camera and I have thousands of photographs on this drive and haven't even come close to running out of room. Even with the sheer quantity of photos and music that I have on my computer, I will be able to use this hard drive for many years to come.
I highly recommend Western Digital hard drives, I have purchased them in the past also and I have always had good luck with them.