End-Game weapon enchants...Follow

for an enhancment Shaman?

I'm currently grinding rep and marks for 2 x Gladiator's Pummeler.

a) What is the best enchant to get, money no object?

b) Whats a good poormans enchant till I get the gold for a?

So far I have a choice of Crusader, +20 Strength, and the +120 Agility proc one (can't remember its name) or would a straight +7 damage be good?

Thanks

From what I understand, any of your top three are viable options. Mongoose is the most expensive but probably most popular; go for it for PvP or if you need more crit, but I found the speed increase disappointing. Potency is a straight +40 AP (+44 with Kings) buff for each weapon; nothing exciting. Crusader is the cheapest (farm the orbs yourself) and comparable to Potency: I can confirm the 1 ppm rate, which will give you +120 AP for 15 of 60 seconds plus the heal effect.

As you get into higher-end (T5+) raids, start looking into executioner.

The +7 Damage would be a LOT cheaper. I sell that enchant for 15G, it would be a good stopgap until you could afford the +20 Strength or +25 Agility (Timbermaw recipe)/ Crusader or Mongoose.
Good Luck.