The Penny Arcade guys raved about BTMod for Oblivion (for the PC, obviously) so I thought it might be of interest:

Improve many aspects of the stock Oblivion UI
• Increase the amount of the Inventory, Magic, Container(Looting), Repair and Alchemy Ingredients listings to 12 or higher
• Increased area to view Local and World Maps
• Increased area to view Quests and Journal
• Increased area to view Skills, Factions and Accomplishments
• Added percentage display to HP/MP/FA display
• Added Durability status under the Weapon Icon on the Main Hud
• Enabled and cleaned up Spell Effect durtation timers
• During Custom Class Creation, increased the size of the enterable name
• Mapped Arrow Keys to various Menu buttons

Download.

Damn Sounds Awesome have to wait till I get home to try it.

Just gave it a whirl. I recommendation it very muchly.

Started using it yesterday. Very good mod. It improves the UI greatly, simply cause you can see a heck of a lot more!