I bought an XP 8.9″ Acer Aspire One.   I love it!  It’s absurdly tiny, surprisingly powerful and ridiculously cheap.

Here is my current desktop.

The thing in the middle is Launchy, a program/file launcher like QuickSilver on the Mac.  The appearance has been altered to look more Vista-ish using Window Blinds and I’m using a nifty desktop organizing program called Fences (you can see the results on the right).