Its been mentioned before, but wizards (and sorcs) wandering around dual wielding clubs is kinda silly, and there really are no viable wizard staves in the game. I would love to see some thought put into real wizard staves.
My first thought was something along the lines of a container. You get an initial cruddy staff that can only hold 1 (or maybe 2) enchantments. As you get higher level you can find staves that let you hold more, and/or those better staves are what controls the level of the enchantment. So, for example, I staff with a level 1 wizzy staff of crudiness. I can get it enchanted (maybe by adding a rune or whatever) with spell pen. So I now have a staff of spell pen 1. Later, with a better, level 5 staff of less crudiness, I can enchant is with a combustion and spell pen so I have a Combustion 5 staff of Spell pen 5.
But then I also was thinking that a model similar to the DT armor wouldn't be bad. Not so much a container, but a simple item that can be enchanted with runes or some such. I'm not saying blind enchanting, not that part of the DT model... However, even with a method similar to DT, it would be nice to see certain items capable of supporting certain types of enchantments and not others... so those uber staves capable of support more varied enchantments would be more valuable.
Them's my thoughts.