I've been running 2 Seagate Baracudas 500GB 32MB Cache for a couple of years now. I love my DNS323 and have been toying with the idea of upgrading the drives to 2 Samsung SpinPoint F3s based on the fantastic reviews these drives have. Obviously, I'll have more capacity- but will I notice any performance gain? Is it really worth it? From what I can tell the drive specs don't seem much different to what I have in terms of access times but it's hard to find decent comparison info. I read somewhere these Samsung drives have a long warranty period and high MTBF. I'm all for reliable drives.