Weapon Length Realism adjusts the "reach" for Morrowinds Weapons (I know it has been done before). This include the ones introduced in the expansions too.
This mod was intended for Morrowind Rebirth, but since many people like things modular I left it that way. Hope you like it!

Weapon Lengths'

Daggers: 0.8
Tantos: 0.9
Short Sword/Clubs/Maces/One handed Axes: 1.0
Longswords/Katana/2 handed Axes/Saber/Rapier: 1.2
Claymores: 1.4
2 handed Hammers: 1.4
2 handed staffs: 1.8
Spears/Haleberds: 2.0

I plan to adjust weapon speed til' next version.

Grab it here:
TES Nexus: http://www.tesnexus.com/downloads/file.php?id=38560
PES: http://planetelderscrolls.gamespy.com/View.php?view=Mods.Detail&id=9159