Gear in Act 1 is mostly random, using whatever magic/rare pieces you find. However it can be very worthwhile to regularly check Una in town for a wand/staff with +level of chaos spells, and socket with a Lesser Iron Rune if possible.
If you want to use
Shield Charge for mobility, make sure to grab a low level shield, as ones you find later will have too high of a stat requirement. If you have a staff or a focus with useful stats, you can put a shield on your weapon swap set to use this.
Can use Transmutes/Augments on boots to try and get movement speed, but save exalts for now.
Cold resistance can help with the final boss in Act 1, but also keep in mind that fire/lightning resistance will become useful during Act 2.