You can either pay somebody in The Mages Guild to recharge it for you (there is one person in each town that will do it), or use soul gems.
Use silver weapons or magical weapons. Magical weapons always work, even when their charge is depleted!
no
Buy or find them.
To get better weapons just level up and you'll find better weapons when loot remains.
if the enchantment system from oblivion remains in skyrim there will be almost infinte unique weapons
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.
There isn't one. There is only weakness to fire, frost, shock, magic, and normal weapons spells in oblivion. There is a weakness to disease spell in Morrowind, i think.
Sadly, no. :/ but from what ive heard, i think you can create armour and weapons in Skyrim :)