As you probably know, there are a variety of skins out there for Windows XP. Some are free, most are not (as usual with most things). We at Liquidicity have come accross an attractive skin, named “Vista Inspirat”. Found on CrystalXP.net, this Brico Pack comes in installer form, and once installed and upon reboot your computer pulls on a nice new Windows Vista- style skin. It comes with some extra 3rd party software bundled to enhance the experience. If you wish to try it out, here is the link to their Brico pack page, where the Vista Inspirat skin is among other downloadable packs:
CrystalXP.net’s Brico pack download page

I also have the skin for myself, and I’ve included a screenshot from my desktop for you (background thanks to 365wallpapers!)

As for the widgets you see, they are from Yahoo’s widget engine. Extremely useful little gadgets!