SPRINT MUSIC STORE Demand instant gratification? For $2.50 (plus a minimum $15-per-month data plan), you can buy and download a track to your phone in less than a minute. The simple interface makes it easy to search for a song or artist and listen to 30-second previews. You can also tune in to radio, including 20 channels of Sirius ($6.95 per month) or Sprint Radio, featuring content from the likes of NPR and ESPN ($5.95 per month).

VERIZON WIRELESS V CAST MUSIC V CAST’s digital storefront is less user-friendly than Sprint’s, and previews play for just 20 seconds. But tunes cost only $1.99, and you don’t need a data plan, though downloading does eat into your plan’s minutes. If you don’t need to hear Gwen’s latest right this second, check out V CAST Music on your PC (integrated into Windows Media Player); there you can buy tunes for 99 cents, then transfer them to your phone.

CINGULAR MUSIC You can’t buy songs directly for your phone–yet–but you can load up tunes from subscrip-tion services like Napster, Yahoo Music and Rhapsody. You’ll need some sort of “to go” plan from one of these services ($12 to $15 per month), and a USB cable to transfer tunes from your computer. Napster users can purchase tunes from their phone for delivery to a PC.