I ordered mine from here
2x BATTERY+ Dock CHARGER FOR Motorola Droid X MB810 - eBay (item 120599049645 end time Aug-20-10 20:22:36 PDT)
They work great, but my Droid X shows they are low (in the red) in 4 hours. At first i was i was a little mad but 12 hours later it was in the same spot. The red light blinking all the time gets annoying fast tho. Im going to try charging the battery in the phone and see how that turns out.
Oh also shipping took about 2 weeks for mine to get here.