Best USB CD/DVD 'Superdrive' drive for new iMac
I've been reading several posts about external (USB?) optical DVD +/- burner/reader drives for the latest desktop iMacs, and several comments have been about various third party ones being superior to the external Apple one that's also available (i.e. that Apple drives often give trouble and are less reliable).
Having seen the likes of LaCie, Western Digital and Seagate mentioned, I'd appreciate comments/recommendations before I go ahead and buy a new iMac - along with an external Apple? or third party? drive.
iMac (20-inch Early 2008), Mac OS X (10.6.8)