[quote=@Instigator]
What are specific differences between what sorcerers and warlocks can and can't do? What obstructs a warlock from simply making a ton of enchanted items with their runic magic? Also, how quickly does a warlock prepare and cast a spell whilst completely unprepared?
[/quote]

Good question. I'll make sure to edit in the answer so it makes a bit more sense. There is nothing preventing the Warlock making a ton of enchanted items, but he can't activate them all at once. He has to power the specific spell he needs. For example if he has a ring with a rune on it that allows him to release a blast of energy and a ring that allows him to blast forth a fire ball, he can only power one of those spells at a time. You're also limited to what you can carry of course. You can haul a backpack full of magic items if you want but you're going to have to go looking for the specific one you need for its specific spell. 

As for how quickly he can make a spell unprepared, it's about as fast as you can draw a rune. In other words you're probably dead if you're unprepared for that situation. Sorecerers are Wizards basically and they do everything a Wizard can do. They can also cast multiple spells at once. 

Edit: I should add that although he can only cast one at a time, he can cast all of his spells pretty quickly. The benfit is also having powerful spells on hand at a moments notice. So with the ring example he can cast both within a second or so of each other. 

Does this answer your question? Also, glad to have you [@Queentze]