I have built a double esata hack mac mini from a 2.53ghz 2009 mac mini. here are two shots of it finished front and back. Now it is finished for testing and work. But not for prettiness. I hope to redesign it for looks and will post more soon. It has 2 1.5tb wd cavair blacks inside of sans digital towerstor units. both drives are seen as internal hdds. i can clone from a to b at about 140mb/s drifting down to 110mb/s near the end of the hdd's. These esata hacks are low cost and you can bring the mini back to stock if you choose to do so. I have a lot of photos and links to post. I have two of these. Both are late 2009 models both are double esata hacks. one is a 2.53ghz and one is a 2.66ghz. when all is said and done I would hope to show how to do this with a 2.53ghz 2009 server model and a 2.66ghz 2009 factory upgraded model. The 2009 2.53ghz and 2009 2.66ghz both work really well I have used them as double esata hacks for months. The one below is the lower cost single bay hdds with a basic dvd player. I hope to show this with a pair of two bay hdds and a higher end dvd player already built and tested. Finally with a rosewill 8bay case. http://www.newegg.com/Product/Product.aspx?Item=N82E16816132016&Tpk=rosewill 8 bay I have the parts have not built it yet. I am using this with my new mac pro.