Does Yahoo have some kind of program that allows you to download your campaigns to a program on your desktop for editing, similar to Google's AdWord Editor?
supposedly this is in 'the works', and will be no-where near as efficient as Googles. theres a suprize.
... I know of a custom made YSM campaign creator. Just enter your adgroup and keyword info... and it generates a .txt file that you can save as a unicode .csv and import. Saves TONS of time, no more adding 500 keywords at a time, copying adgroups/ads, etc. Any interest PM me and I'll give you a link... my server can't handle all of DP using it at once.