Do you know if there's a way to activate preview using the mouse, instead of having to use the space bar? It would be great if, while in Cover Flow view, I could preview the document clicking on it or Command-clicking (right-button).
I use Steermouse to map the middle mouse button to Spacebar, only for Finder. Works like a charm (with the added benefit of being able to instantly spring-open folders when moving files) ... 😉