RPG Interface by Sweepingzero
It's been a long time since I didn't news any cool interface. Sweepingzero is working on a RPG and has done a pretty good job at recreating from scratch the whole interface. He is looking for talented people in order to work on the map :)
Kerrigan Model by Underp4ntz
This is the first released edited model! Take nova, put some hairs and glows and you get Kerrigan :) The model tools are becoming a lot more evolved and stable, you should now be able to work on custom models without too much problem!
Melee: Orbital Decay by BoomStevo
Orbital Decay is a 4 player melee map developed toward 1v1 by BoomStevo. I really don't know what else to say ... Play it, it looks well made! (I'm sorry, I'm not really good when it comes to melee maps ...)
Warcraft 3 Armor Reduction by KorvinGump
I'm pretty sure that a lot of you are tired of units in Starcraft 2 dying like flies. You want tough units like in Warcraft 3! KorvinGump made a one-trigger system that lets you implement the Warcraft 3 armor reduction. As a result, there will be less units on the battle field and it'll lag less :)
Salirth had edited and released a model before the Kerrigan one here: A Psionic Hydralisk.
http://forums.sc2mapster.com/development/artist-tavern/1533-request-psionic-hydralisk-model-portrait/?post=22
http://www.sc2mapster.com/assets/psihydr-model/