Earlier this year, Dell introduced the Inspiron desktop line as a replacement for its venerable Dimension desktop brand. The latest version of the Inspiron 531 ($1,129 direct, $1,409 with 20-inch widescreen LCD monitor) comes with a new addition: a Blu-ray drive. Before you get too excited, it's a read-only unit, so it can't burn BD-R or BD-RE discs. This is a system strictly for people who want to enjoy Blu-ray media (mostly movies) on a midrange PC. The rest of the system isn't slouchy, but there are a couple of better choices out there, especially when you discount the impact of the Blu-ray drive.