Theres not many talents you really NEED.

For combat characters you only really want.
1) Bully.
1) Lone Wolf.
5) Glass Cannon
7) Expert Marksman OR Weather The Storm.

For mages you only really want.

1) Pet Pal.
1) Lone Wolf.
5) Glass Cannon.
7) Far Out Man.

You can easily turn the other talent points into Ability Points and pump your Body Building/Willpower.