25 Windows 7 Themes

Windows7 Black Transparent

ThaImpact VS for Windows 7 RC

Windows 7 Skull Visual Style

Woodstock Windows 7 Theme

Windows 7 RED Theme

Underoath Theme for Windows 7

Aerosnap 7 Theme

OnlyBlack Windows 7 RC theme

AeroLighting For Windows 7

Warsaw- Windows 7 Theme

Lumens for Windows 7

Desk 09 with New Windows 7 OS

Alternative for Windows 7 RC

SiCo for Windows 7 RC

Aero Diamond for Windows 7 x64

Heart Windows 7 Theme

Theme For Winodws 7

Windows 7 OSX

Clean Green Windows 7 Theme

Seven Aero Shine Blue For 7RC

Trans-7 Themepack

SevenMaxClearLiveFinal For 7RC

Windows 7 Simple Black Glass

Natural

Waterbomb and Windows 7

Or, if you are using Windows Vista, take a look at our 24 Amazing Windows Vista Themes / Styles

[Credits: addictivetips.com]