Skip to bottom if you don't want to read and just get it:
I just mashed together a seemless texture for the Taskbar Texture and messed about a bit more to make the Start Menu Texture.
The Zerg Race Icon I applied various filters alpha to be ready. There are 3 stages you can have to the StartButton replacement, no mouse over, mouse over, clicked. Currently I have no mouse over and mouse over(the brighter version only). If anyone wants they can edit a the last one to something interesting. I use this program to change the start icon and windowsblinds+skin studio to put the texture on though i'll switch to something else at the end of the month free trial if I find anything free.
The window thumbnail preview isn't seemless and i'm lazy so
someone else fix that if they are inclined to do so.
Heres a link to all the textures I mashed together, hf. Post improvements you make or other zerg junk.
http://www.mediafire.com/?0kbtc9s2ml5cure
Background not included its just some art straight from blizz site you can pick your own; i usually just have flowers on my desktop lol.
Someone is making a Terran theme in the TL Community Section just posting this cos more then 1 other person wanted some zerg love asap. I'm sure someone can make something more polished soon fingers crossed.
You need:-
Start Button Changer
WindowBlinds +
Skin Studio (I used free 1 month trial of these after that do what you want I gave you the textures go mad)
http://www.mediafire.com/?0kbtc9s2ml5cure (3 Textures: StartMenu,StartButton,Tastbar Textures)