Hi, I have needed to use background images for meshediting and object placement quite a bit over the past while.
Its usefull if you have side, top and front views.
BUT there is one thing in blender that I would PAY some person to add.
Allong with the size button I want an XOFFSET and YOFFSET button.
This means I can line up all the views.
Sorry to gripe but its a pain to work around this with UV textures on quads.