If you thought adding a Bluetooth module to the Acer Aspire One was cool, how about practically squaring the amount of storage available? Tnkgirl is back with part two in her Aspire One hacking series, and this time she’s replaced the solid state disk with a 60GB hard drive.

But wait, you might be asking, aren’t SSDs sturdier and faster than HDDs? Yes and no. On the one hand, there are no moving parts in SSDs, which makes them more durable and drop-resistant than hard drives. On the other hand, the particule SSD module included in the Acer Aspire One is kind of pokey, which means that most commercially available 1.8″ hard disks (like the type used in iPods) will give you better performance. And it turns out that there’s just enough room inside the Acer Aspire One case to cram a 1.8″ disc in there.

Acer does sell a hard drive version of the Aspire One. But Tnkgrl points out that the hard drive used in that model is a 2.5″ standard laptop drive, which adds weight to the notebook and requires a slightly larger case. By modifying the SSD version instead of paying for the HDD version, you get a lighter weight laptop with similar specs.

You can check out the video after the jump.