Is a six-year-old computer under-powered for Inventor 2008? I had to find out.
I figured out how to extrude my sketch (Finish Sketching, Extrude). I added fillets to all edges (a single step, AutoCAD users might gnash their teeth to learn). I turned on the extra detailed drop shadow, applied a chrome material, and turned on real-time zebra analysis. That should nicely bog down my computer, I figured.
I found the button for real-time 3D rotation, and began twirling the model. I mean, twirling. Really. Not a problem: Inventor 2008 seems to run faster on my computer than does AutoCAD 2008.
Also gave a try at dimensioning the sketch. It was so easy, that I'm starting to understand why Autodesk is trying to get its users to switch away from AutoCAD. It's not only the added revenue for Autodesk; Inventor is just plain easier to use than AutoCAD, even for 2D drafting.