In Eclipse, selecting a line and pressing Alt + ↑/↓ will move the line up and down, a quick way to avoid copy&paste. Is there
ReSharper's Ctrl + Shift + Alt + ↑/↓/←/→ is even more powerful - when on the beginning of the line, it will move the entire line, but can also be used to move entire methods, change the order of parameters, etc.