I'm wondering if there's an easy way to do a "block" select across multiple and be able to append text at the end of each line. I usually do this using a rectangular selection, but the rectangular selection is rigid and I would like to find a way to append to the end of the line in it's natural position.

That is, I'm looking for a rectangular selection that can "find" the end of the line as I drag the across multiple lines. I believe this is something that textmate does so I'm sure it's possible...