Here is my theme
Full Render Thempack
This is a Pack containing nearly all the default icons for Windows 7 and they are scalable if anyone wants them.
Windows 7 icons
Here are all the Vista Icons for anyone who wants to use them.
Windows Vista icons pack
Here are some more that I customized a little.
Custom Windows 7 icons
Links keep getting messed up so just browse my public folder for what you need.