Pros: I got this drive to replace the 200GB drive in my Macbook Pro. Upon replacement it turns out the 200GB drive that came with it was a Hitachi drive that was almost the same is the new 320GB one, other than their capacities. Because of this, my hard drive sound is still nice and quiet as it was before. There are some speed improvements on my new drive compared to the old one. I choose this drive because after doing some research online with benchmarks and such it turned out this drive uses the least power of any of the 320GB drives and is also the fastest in most tests.

Cons: None I can think of.

Overall Review: If you want a 320GB 2.5" drive, in my opinion this is your best option.

Pros: Firewire 800 is a big plus with this product. With more than double the effective speed of USB, other than eSATA this is the best you can get. The device seemed to be fast and responsive, and is perfect for my use: Time Machine backups. The case is fairly compact. The Firewire cable was longer than expected, but I think this is a good thing. The disk spins down automatically when it hasn't been used for a while when connected to my Macbook Pro via Firewire, not sure if this will happen on USB, but I haven't tried.

Cons: The drive is a little heavier than most external drives, but this is because terabyte hard drives are heavier. At times the drive will be a little noisier than expected, but only when doing multiple writes/reads at once.

Overall Review: This drive works perfectly for me and I think the extra 20 dollars or so was worth it for the Firewire 800

Pros: Lowest latency DDR2 ram available at a price not too much more than the cheapest other ram. Works perfectly in my Macbook Pro (Early 2008) that has the Penryn based chip.

Cons: None

Pros: I put the sticks in my new Penryn Macbook Pro and they worked perfectly.

Cons: None