For video walk-through, I suggest camstudio - free and pretty easy to use. I've used virtualdub for very basic editing (just clipping at the beginning and end).
IMO, the best priests for Paladins and Eidolons come from Cultists, because you get Water Walk and Tsunami. Depends on the map, obviously - on maps without much water a Ritualist would be better. If your Paladins/Eidolons are going to be wandering off without other support, then you can make a good argument for confessors or even Priests of Leaves.
For Druids, it's all about the T3 spells. As Gekko implies, vicar druids are awesome because of crown of brilliance. I like having a stonewarden druid for earthquake, and if you have a flesh golem lying around then a single cultist druid is nice for pumping his strength with krakens.
IMO, the best priests for Paladins and Eidolons come from Cultists, because you get Water Walk and Tsunami. Depends on the map, obviously - on maps without much water a Ritualist would be better. If your Paladins/Eidolons are going to be wandering off without other support, then you can make a good argument for confessors or even Priests of Leaves.
For Druids, it's all about the T3 spells. As Gekko implies, vicar druids are awesome because of crown of brilliance. I like having a stonewarden druid for earthquake, and if you have a flesh golem lying around then a single cultist druid is nice for pumping his strength with krakens.