Enhancement: create by length/angle / Rotate feature

[dougtape]

I am looking for some feature creation tools similar to those available in a proprietary software that I think will help promote QGIS to new users.

What I am looking for are:

The option when creating lines (or sections of a polygon) to specify the angle, and the ability to specify the length of each segment being created.

Also the ability to rotate polygons and lines after creation. This will assist in exactly placing objects on a map.

These could be implemented on a right click while digitizing each new node of a line or polygon.

Another nice feature would be a status in the bottom status bar (near coordinates) of how long the segment you are creating is.