Need help with Weapon Focus feat

[Thomas Oak]

I am trying to make a magus character for the first time and assumed my two starting feats would be weapon finess and weapon focus. However I can't select the second for some reason. The description says its only requirement is base attack bonus of 1
Any ideas about this? I assumed my BAB was my level but maybe I need to wait for my first level-up and start on zero

[Graygan]

Magus' are a medium BAB class.

Fast BAB = +1 to hit per level
(fighters, monks, rangers, etc.)

Med BAB = +3/4 to hit per level
(clerics, magus', rogues, etc.)

Slow BAB = +1/2 to hit per level.
(wizards, sorcers, alchemist, etc.)

In other words, you'll get a BAB of +1 at level 2.

[Thomas Oak]

Many thanks for the swift help.
What feat would you recommend I take instead of weapon focus? I presume I don't need Arcane Armour Training as a Magus, or do I?

[timechef]

Your presumption is correct.

Weapon expertise is nice, since it'll boost ac a bit and you'll have the int for it.

Spell Focus: Evocation (followed later by Spell Specialization) is also a way to go.

[Myrryr]

No, you don't need armor training. I'd recommend grabbing spell focus for one of the schools so you can grab spell specialization later.