Installed a Kingston 160GB X25-M in my base early 2k8 on Sat... prior drive was WD Scorpio Black 320gb (7200 rpm) Quick notes: - Bootup went from 39 seconds to 19 seconds. This is from the moment I hit the power button to when the dock pops up on the desktop - Launch time is definitely faster, but it already was pretty quick with the 7200 rpm drive. - The biggest wow really is in the multitasking performance. Unbelievable, I can't faze this thing. This is the main reason I bought it - all too often I have an XP VM doing a .NET compilation in the background and Logic open churning on some song and getting bits of stuttering... or doing something similar and getting pauses here and there in Safari... pauses when switching spaces. All of this is gone. The user experience is far... cleaner. - Of course, as this is Sata 1, the max throughput shown by XBench was right around 115MB/s. The other scores were similar to what you see in other testing, and overall my machine got a 185-190. Prior I believe it was 130. I bought this with the full intent of reselling on eBay if it didn't wow me. As I type this on my workstation in the office I'm trying to figure out a way to convince IT to allow me to put one in on my own accord. But at this price I don't think I would recommend it for casual users.