Without modern electronics, mankind would have limited access to Bach's symphonies, Hitchcock's films, and Bob Saget's dog and baby voice-overs. Stock up on entertaining appliances with today's Groupon: for $25, you get $50 worth of Apple and PC products, software, and accessories at Essex Computers in Paramus.

Certified as an Apple specialist, Essex Computers showcases the latest Apple mobile and desktop devices, including iMacs, iPads, iPods, and MacBooks Air and Pro, as well as other name-brand hardware and software equipment. Apple TV wirelessly enables your TV to stream Netflix and YouTube videos ($99), and also displays photos, plays music, and teams up against arrogant automated chess programs. Carry up to 24 hours of music by clipping the 8GB multitouch iPod Nano to shirtsleeves and belt buckles ($149). Other music mavens can connect their Nano, notebook, or iPhone to the Aurora audio system, streamlined with a sleek design and 15-watt subwoofer ($99.99).

For slippery handheld devices prone to plunge expensive-side-up onto hard surfaces, the iPhone 4 case by Sonix protects with a casing clipped from vintage vinyl records ($34.95). With 1TB of digital space, the Lacie external hard drive stores, backs up, and protects your music, photos, and files ($99.99).