Any tips regarding Light Armor & Enchanting? Which perks should I be taking... ?
I'll link you to a similar build that I played last time.
http://skyrimcalculator.com/#28673
This is my own experience and you can feel free to differ. This will take you to level 37.
You don't need to go up very high on the destruction tree as higher level spells sometimes need both hands plus at higher levels you'll do more damage with a sword and spell. Since you can also enchant a blade with a fire enchant and get the bonus for doing damage to targets already on fire.
Enchanting hides a multitude of sins. Its one of the most powerful crafting trees. It is both a big money maker by selling enchanted items and very useful. Smithing is very easy to level up so if you are taking a lot of damage focus on combat skills first. You can use Azura's Star to help raise your enchant. Or make hide bracers to up your smithing then enchant those to raise two skills.
The hardest skill for me was the light armor skill. After all if you do your job right you shouldn't be taking too many hits. So feel free to take those perks as soon as your skill level in armor allows. The other skills will level up naturally
Make sure you use your shouts and I'd advise a ranged companion that way they don't get caught in the crossfire of your spells. Aela from the companions is good. If you complete their quest she can become a follower. She usually hangs back and picks them off while you go toe to toe with them. Unrelenting force is a good base shout. Also ice form, and become ethereal are very good at buying you some time to run away or switch to a restore health spell if needed. Don't forget the standing stones
http://www.uesp.net/wiki/Skyrim:Standing_Stone
The lord stone or the lady stone are good if you find yourself taking too much damage.