Now you can dial up the ISO to compensate for low-light conditions without having to worry about the noisy price you’re likely to pay. That’s because PictureCode today released the Noise Ninja plug-in for Aperture 2.1. With the $79.95 plug-in installed, you can take advantage of the industry’s “gold standard for image noise reduction” without leaving Aperture.

In addition to reducing image noise with the new Noise Ninja plug-in, you can now add even greater utility to Aperture by taking advantage of the more than 70 editing plug-ins, export plug-ins, AppleScripts, Automator workflows, and book and web themes available from developers. And you’ll find them all in one convenient place: the new Aperture 2.1 plug-ins page.

If you’re in the mood for a hilarious good time, you’ll want to purchase ($9.99) or rent ($2.99) Ghostbusters, now available on iTunes. Starring Bill Murray, Dan Aykroyd. and Sigourney Weaver, Ghostbusters appears on numerous “greatest comedy” lists, and Ghostbusters II, also on iTunes, is just as funny. Strap on your proton pack and enjoy.

iPhone 2.0 Software and the App Store turned iPhone into “a bona fide software platform,” explains Michael Gartenberg (computerworld.com), and support for Exchange only adds to its overwhelming appeal. “I had no problems syncing my Exchange data to the iPhone. A lot of folks are dependent on Exchange, so this new ability has made the iPhone a first-class corporate citizen.”

Wouldn’t it be great if you could tune into a radio station that played only the music you like? Now you can with Pandora Radio. One of the most highly rated applications on the App Store, Pandora Radio delivers a “FREE personalized radio” station to your iPhone. Pandora Radio broadcasts 24/7, and if you switch applications or take a call, Pandora pauses the music; then resumes automatically when you return.

To help those who want to retain their digital lifestyles while vacationing, Philip Elmer-Dewitt (time.com) highlights “25 Gotta Have Travel Gadgets.” Among them: AirPort Express, MacBook Air, and iPhone 3G.