As you probably already know, Codeweavers released Crossover Pro free today only. Crossover lets you run Windows applications within Linux/Mac. Its has alot better compatibility than Wine. First thing I installed? Internet Explorer 6 with Shockwave, so I can finally run some fun shockwave enabled sites on Ubuntu. :-) Crossover also supports Microsoft Office XP among a host of other windows applications.
Heres the video tutorial I made ...
I've showed off my desktop before which includes Samurize, one of my favorite all-time windows apps. According to their site, Samurizeis an advanced system monitoring and desktop enhancement engine for Windows 2000/XP/2003/Vista. which is 100% free! Heres how to edit it once you've got it installed and running:
RocketDock is great, but with the Stacks Docklet its awesome.