On the GE website, they have some info about the Class 70 - and many videos.
Amoung the videos are runs of the loco without some of the skins, wooden handrails/decks on the side, and no paint. Quite a different beast that way!
GE Reports on 1st Powerhaul Locomotives ship to UK
I think that they will grow on you. I like them.
Gil B)