Once you get high enough level, like 15 or something, bandits will start carrying glass daggers, glass warhammers, you name it. It is based on level, not location.
no
Buy or find them.
To get better weapons just level up and you'll find better weapons when loot remains.
You can, if you use a mod.
if the enchantment system from oblivion remains in skyrim there will be almost infinte unique weapons
Use silver weapons or magical weapons. Magical weapons always work, even when their charge is depleted!
Depends on what level you have it made. As you level up, higher, more powerful armor and weapons can be made from amber and madness ore. The highest quality of amber armour is even better than glass.
Im not quite sure what your asking, but the guardians of oblivion are the daedra, ( the guys who wield big weapons and run around wearing daedric armour) and most of the creatures in the oblivion gates ie: scamps, clanfear, daedroths, astronachs ect...
There are pre set weapons that you can inchant but you can't make a weapon from scratch
You need to be able to get into the arcane university, then you will find a room were you can create them.
Nope, you have to use filled soul gems on it.
To kill any kind of ghost or spirit in TES 4: Oblivion, you need to either use spells, or enchanted, silver or daedric weapons.