The ONLY place I've found with Translocate: Grimling, Dawnshroud and Twilight is Mignar in Neriak Commons (see Alikaar's post below). They're NOT on the Abysmal transportation spell vendor and NOT sold in Temple of Sol Ro.
If your wizard isn't a dark elf, just buy them with a DE mule.
Edited, Sun Apr 30 03:14:43 2006