oh, and I've been doing this often since I installed 2008, but just realized that it's new since 2007... well recycled, not new.
In 2007 they took away the ability for you to move a 3d solid by using a point on itself as the destination point. Meaning, if you select "move" pick the object, and say you pick the left corner of a box as the base point, you couldn't pick the right corner, because the box is dynamically moving with your cursor... it didn't leave a "ghost silhouette" behind that you can snap to. Now 2008 has reverted to the original way, which makes me super-dee-duper-happy.