Right, you can put weapon enchantments on Spiked Gauntlets, and since Grappling Strike has the weapon keyword they will add an enhancement bonus. Quite effective. The enchantments you can use are limited however to those for 'any weapon' (or theoretically 'unarmed' group weapons, but I don't think there are any in that category). The Talid is pretty similar, except for not occupying the hands slot, which does make it a better choice if your DM will allow it or you are in DS.
As DracoSuave says, using a weapon and shield with Brawler style doesn't make that much sense. Using a spiked shield, yeah, that will work. Put a Rhythm Blade enchantment on it for more fun.