Since there are OS discussions here often enough, I wanted to share this article:
http://reviews.cnet.com/windows/microsoft-windows-7-professional/4505-3672_7-33704140.html
I found this particular quote helpful because it addresses a very common criticism of Windows 7:
Although the look of Windows 7 may seem to be nothing more than some polish applied liberally to the Vista Aero theme, make no mistake: This is a full replacement operating system, and more than just "Vista done right." From driver support to multitouch groundwork for the future, from better battery management to the most easy-to-use interface Microsoft has ever had, Windows 7 is hardly half-baked.
Since my recent purchase of a new Vista OEM comes with a voucher for a free Windows 7 upgrade (as do all Vista purchases made after June 22), I will be upgrading to Windows 7 once I am comfortable that the release is stable enough.