The second is the invigore line of spells which restore a players stamina. While this is useful you rarely have the extra mana to spend in a battle on restoring ones stamina. Now let's assume your convinced that you want to be a cleric. As always I feel that race is purely a matter of personal playing style but some races are more suited for the task than others. My personal favorite pick would be a dwarf .
Dwarven clerics are good for several reasons.
They have naturally high strength, stamina, and wisdom which are very important statistics for a cleric. The glaring weakness of a dwarven cleric lies in his agility. I would recommend you pour most of your training points into agility and give it at least a score of 80. Spread the rest between strength or wisdom. All in all I feel that clerics are a very good class and one that is neccessary in this game.