@row: I think he was more asking for a new kind of item and was therefore hinting in the general direction of "what is useful", instead of actual items.
Imo, the amount of bows is lackluster. There needs to be more. Possibly in the direction of magical bows which give initiative instead of take i, balanced out by removing damage and making it superior for rangers with high accuracy and crit. e.g.
"Featherwing Stormbow"
two-handed
3 Lightning Damage
+1 Initiative per level
+40 Crit chance
+wielder cannot move due to firing so fast
I think this would be interesting. Although I'm ofcourse unsure about how to implement "unit cannot move".
As for Mages: Those definately need some kind of Melee weapon while casting spells like "Fire Hands" and "Toss people away air spell melee range".
Something along those lines e.g.
"Dagger of the mind"
one-handed
1 Damage
+250% Damage on Melee Spells
+can cast shadow shift without cooldown (from the assassin path)
+wielder cannot dodge or resist spells
As for defenders maybe a onehanded-spear which gives dodge or armor or anything alike maybe retaliate e.g.
"Dauntless Spear"
One-handed
25 damage
+25 dodge
+25 retaliate hits
+wielder cannot attack normally (only retaliate or cast spells/skills)
A warrior would maybe need something to make him worthwhile and mobile e.g.
"Brutal Bracer"
Bracer
+1 atk per level
+1 accuracy per level
+1 initiative per level
+1 moves per level
+unit cannot cast spells (skills however are allowed)
+unit cannot dodge
Level needed: 10
Pretty strong, but it would make warrior cool 
Interesting idea for administrator: Give ihm stuff to do inside cities e.g.
"Band of the valuable Ruler"
+wielder gains 10 experience for each turn inside cities
+20 experience for every unit trained in that city
+30 experience for every building built in that city
+reduces unrest globally by 1% per level
+5 gildar per turn for each building in that city
unit cannot enter combat (instead dies when attacked like a caravan)
You get the point I guess.
Here is hoping I didn't misinterpret and all those cool ideas are actually helping.