The standard level goes high-tech with the Empire 48" digital laser level. This tool is reviewed by a real user who used the level the frame out his basement walls. The level was more accurate than a standard level. It can also be used to plumb and was very easy to use. Visit www.toolselect.com [2] to get more great tool reviews.
Links:
[1] http://www.youtube.com/watch?v=qoz_y1oOQ4c
[2] http://www.toolselect.com