Two fabulous products that are MUST haves:
Konfabulator has been released for Windows. It allows you to add various widgets like to-do lists and weather information to your desktop. But the design and polish on these widgets are absolutely fabulous.
And be sure to download the full official release of Firefox 1.0. It's been my default browser for awhile now and it should be yours too! Also, for optimized versions of Firefox, be sure to check out Moox.