If you've been giving the Windows 8 Consumer Preview a whirl and just can't get past the lack of a start button or you haven't been able to fall in love with the start screen, Start8 is a new utility from StarDock that brings the start button back to the taskbar in all its glory.Once installed, Start8 adds the start button back to its familiar home on the taskbar. Just click Desktop from the Start Screen to see it. When you click the Start button however, you'll see a different, more Metro styled Start Menu than you may be accustomed to. It works the same however; you can still use the Run box to open programs, you can still click "Apps" to see all of your programs, or "Settings" to see which control panels are available, and you can pin items to the Start Menu for quick access. It's a little different, but if you find yourself wishing Windows 8 would at least give you the option to have a Start button or Start Menu, Start8 offers it to you.
Start8 is a free download from StarDock -- you'll have to provide an email address to get a download link, but they don't email you with the link or any kind of confirmation, so just type in your address, click submit, and you can download immediately.
Start8 for Windows 8 [Stardock]