This may already be obvious to heavy Eclipse/CFEclipse/FlexBuilder users, but there's a really simple way to move one or more lines of code around without having to use copy/paste.

To move a single line of code, place the cursor anywhere on the line and click alt-up arrow to move the code up one line, or alt-down arrow to move the code down one line.

To move multiple lines of code at once, highlight the code you wish to move and use the same alt-up arrow/alt-down arrow shortcut. It's that easy!