Back in August, I bought a SD2IEC drive kit.

The SD2IEC is a SD card reader for 8-bit Commodore computers, sucessor of the MMC2IEC, it connects to the computer via it's serial IEC connector.
This allow Commodore users to have a huge software collection on a single SD card, either as individual files or as .D64 disk images.
The only drawback of this device is that it cannot emulate the CPU present on real Commodore Drives, making it incompatible with most diskturbos.
I bought this kit from Retrocomputacion.com user MarcosJL, who issued a limited edition run of SD2IEC boards.

This is the board assembled:


Then I made a box for it with MDF:

Back in February 2008 I build my own external disk drive for my Amiga 500.
The circuit takes care of the differences between the Amiga and the PC disk drives, the only modification (not required*) to the drive being the bypass of the density sensor.

* Only required to use HD floppies without the need to close the HD density hole with tape.