I'm amused by the many people who shun live view mode as a 'p&s only feature' that is clearly below the level of a DSLR user. It's a useful tool and there are a number of situations where it makes taking a certain shot possible, or just easier. Manual focusing is the big one for me, but also odd angles, night shots, candids, etc.
Shooting the moon I found it hugely beneficial to be able to zoom in with live view and manual focus with the utmost precision. You can also set the live view mode to show the actual exposure you will get which can take a bit of the guesswork out at times.