First notes: This HUD removes the 'wallclimbing' and 'boosting' indicators from the Alien HUD, and nearly completely rewrites the Human HUD. Several items are no longer where they were previously on the Human HUD, and the Alien HUD will be re-written shortly as well.
Specific Human HUD changes:
Clip Counter moved under the Ammo Counter.
Build counter changed to bright green and wrapped 'around' the wrench icon.
Stamina gauge re-written to indicate number of 'hops' left available numerically, and dimming the health icon when you can't jump.
'Hand' icon changed to bright green replaces the health icon when you are in range of a usable construction.
'Currently Selected Item' icon changed to bright green for improved visibility.
Solid black backgrounds placed behind all status areas and changed to close-cropped designs.
Credit counter centered underneath inventory display.
This is still a work-in-progress, but feel free to take a look:
Replacement Tremulous HUD ModUnzip that to your
base directory underneath your Tremulous directory. This should make a folder called 'ui' underneath your base directory.
To enable this modification (which DOES work on sv_pure servers, since it's using Q3TA menu scripts only) type this in the console:
/cg_hudfiles "ui/hud.cfg"
Now restart Tremulous, and give it a whirl. :-)
I'm going to work on making more modifications to the Tremulous menu-scripts, so bear in mind this is very much an early release, and isn't in a 'finished state' by any stretch.
Old and shiny:

New and crisp:
EDIT: Corrected cg_hudfile to cg_hudfilesEDIT: Updated description of the HUD.