Spot on. I've been looking at those. This machine is silent (no fans); but, depending on manufacturer and model, the HDD has the potential to ruin that. I'm thinking of some of the longer lasting but noisy Hitachi's I've come across. A stable SSD with great read/write specs would be great (Vertex 4?).
I'm a bit concerned about the controller, though. From the factory it's setup just like you'd expect to see it in a PC with the hard drive as the master and the optical drive jumpered as a slave. Until I test it out in the actual machine I'll reserve cautious optimism.