Lately, computer makers seem to be acknowledging that the line between consumery and businessy design is increasingly blurry. HP’s new ProBook 5330m notebook is a case in point: it’s HP’s first business notebook to come with Beats audio, the sound system endorsed by Dr. Dre. The 5330m also features HP’s “Forge” brushed-aluminum industrial design, whose basically philosphy is “Let’s try to make a business notebook that has a bit of style to it, without getting so splashy that it’ll turn off conservative buyers at big companies.” And it’s got a 13.3″ display and no optical drive, a form factor that was pretty darn scarce among corporate machines until recently.

The 5330m can be custom-configured with built-in 3G broadband, and if you get it you can opt for a new feature I think a lot of folks will like: DataPass, which lets you pay for access to broadband as you need it, rather than signing up for a contract. Options range from $5 for 75MB or five hours, whichever comes first to $30 for 1GB or 30 days. If you use the Internet incessantly (like I do), these choices offer too little capacity to make sense. But if you just need on-the-go access here and there–such as on the occasional business trip–they could be a cost-effective alternative to monthly plans or hotel Wi-Fi.

The new ProBook starts at $799, is available in Intel Core i3 and i5 versions, and is less than an inch thick and weighs 3.9 pounds. It’s available starting today.

High-quality sound on business notebooks, incidentally, seems to be a new trend: Lenovo recently announced new ThinkPads which are the first corporate-aimed laptops from any manufacturer to incorporate Dolby’s Home Theater 4 technology, which improves audio quality and can add a pretty effective virtual surround-sound effect.

Also on display at the Dolby event was Mitsubishi’s 52-inch LT-52249 LCD TV with built-in Vudu–a drool-worthy $3099 1080p display that showed off Vudu’s razor-sharp video to impressive advantage. (The Bolt trailer has never looked so good.)

Vudu’s biggest limitation is that unlike humongous archrival iTunes, it’s only available in the living room–not on computers and portable devices. A Vudu representative at the event said that the company said that figuring out how to bring Vudu to more devices is on its to-do list.

The company also announced that Vudu has now integrated Rotten Tomatoes movie reviews into its service’s slick user interface, providing access to a much richer database of critiques as you browse for stuff to watch.