Other World Computing (http://www.macsales.com) has expanded its OWC Data Doubler optical bay drive mounting solution line with a custom fit model for Mac mini 2009 and iMac 2009-2010 models.
The OWC Data Doubler enables Mac users to replace their optical drive with a second hard drive or SSD for up to an additional 750GB of internal drive capacity, internal RAID, or other user customized internal data storage configurations. The US$79.99 OWC Data Doubler for 2009 Mac mini (user installable) and iMac 2009-2010 models (professional installation recommended) comes complete with all required hardware and is immediately available for the following Macs: Mac mini “Early 2009” and “Mid 2009” model; iMac 20-inch “Mid 2009” models; iMac 21.5-inch and 27-inch Late 2009” and “Mid 2010” models.