Astrophotography Equatorial Mounts

Timoris writes: With the Perseids approaching rapidly, I am looking for a good beginner's motorized Equatorial mount for astrophotography. I have seen a few for $150 to $200, but apperently the motor vibrations makes for poor photographs. Orion makes good mounts, but are out of my price range ($350) and the motor is sold separately, adding to the price half over again. Does anyone have any good experiance with any low mid priced mounts?