I was tired of leaving my cord at home and noticed that the Droid charges significantly faster when plugged into the wall socket so I picked up
Belkin Mini Surge Protector Dual USB Charger and an extra
USB Data Charge Sync Cable for Motorola Droid The fit of the USB cable is a little wonky but what can you expect for two cents. I see that they have nicer ones for 8.99 now too though I am not sure it is worth the extra $$.
Hope this helps.