There are a number of different hit rating caps

Even beyond basic gemming, you want to be looking to fill up your enchants with as many agility enchants as possible. While it's fine to use Precision to boots or bracers to reach your hit cap, those are some of the first WOW Gold you want to look at getting rid of. Hit your epic bracers with the costly +50 agility whenever you have the resources available to do it. Throw on an Enchant Boots- Major Agility as soon as you can maintain 1,742 hit rating without hit rating on your boots. Agility is your friend; use it liberally.

Hit rating

Hit rating is different. There are a number of different hit rating caps, some of which you need to worry about and some of which you have no concern for. First off is the "yellow" hit cap. This caps our special attacks, Lava Lash, Windfury, and Stormstrike. You reach this cap by having 8% melee hit. Since being specced enhancement gives us 6% hit rating while dual wielding, we only need 2% melee hit to cap specials. This is only 240 hit rating, and it's the first thing you will cap.

The more important hit rating to cap is the spell hit cap. Every boss has a built in 17% chance for spells to miss them, which we want to see brought down to zero. Unleash Elements, our Shock spells, Lightning Bolt, and Searing Totem all work off spell hit, as does the always important Wind Shear. You don't want any of these abilities to miss, which is why spell hit is the second most important thing for us to cap. We currently have no spell hit talents like a retribution paladin's Sheath of Light. As a result, we want to reforge and enchant into the full 1,742 rating. Do your best not to gem hit unless you're extremely close to capping and can't reforge anything else in.