Silenthunter,
Making a hume into a paladin is a very good choice. He has some very good attacks (holy) and is a great tank for your party. U want a Parivir/gladiator, but that isnt possible as hume, the gladiator is Bangaa-only.
A good Hume melee class is Paladin/Paravir, go for that one. Great defence, attacks (Fire/ice/lighning/holy) and good tank.
A Templar isnt that bad for a bangaa, it is a good anti-mage unit, but i prefer a good attackunit or range-unit as a bangaa, so i would go for a dragoon/gladiator or dragoon/master monk. A mastermonk has very good stats growth, and has great movement and speed. As range-bangaa i would make a cannoneer/trickster. both range, with great support skills (and trickster is fast, but magicbased).
If you want the templar as unit, go for the templar/dragoon combination, both spear, so you can use the jumpattack of the dragoon.
Your no mou choice isnt really good i think, there are many better healers than a no mou white mage. go for a viera summoner as healer. (Imo) As a No Mou, go for the Alchemist/sage. Great debuffs attacks and other spells (water, aero, ultimate blow).
A Time mage is also good, with hastega and stop
Viera sniper is a good choice as rangeunit, a good combination is the sniper/assasin, both great in long distance. go for that one
Moogles arent that good, a no mou time mages is better than a moogle one. As a moogle , dont use magic, but instead use a melee fighter, like moogle knight/chocobo-rider. a really fun class to play with. As a range-moogle, use a gunner (fussilier)/ moogle knight. the great range of the gunner with the great attackskills of the moogle knight is a godly combination.
Tim
edit: About ur Seeg viking, It is the only littlemagicbases unit of the seer (lightning attacks), i dont like this unit, but you can experiment with it if you want to. It has some cool stealabilitys (the only unit that can steal weapons and armour), so if you like that, go for it. i prefer a ranger/berserk. Very funny to use (with those traps) and can handle monsters without help from others.
If someone has other question, i think i can answer them. (I am A really great ffta-fan and played and still play it alot)