From what I've read thus far, NCQ hasn't really "shown its stuff" as far as large performance benefits. Has the TechReport found NCQ's shining star in multi-tasking?

"Unfortunately, most commonly used hard drive benchmarks don't play to NCQ's strengths, and those that do involve server-style workloads that are hardly indicative of desktop environments. In order to test Native Command Queuing's performance potential on the desktop, something completely different is needed—and we have just the thing."