[oopic] New range finder needed

I have been working under the assumption that the SRF08 ultrasonic range
sensor was somewhat reliable at distances over 1 meter as a binary pair.
After testing two pairs extensively, the readings bounce around so badly
that depth perception cannot be calculated using them, though some rough
distances are possible after averaging for several repetitions. The sensors
seem pretty accurate at ranges under about 50cm, but not so much beyond
that.

Therefore, I am looking at my options. One option is to switch to a camera
(like the CMUCam) and do a whole bunch of visual processing. The other
option is a far more accurate range finder such as a laser, perhaps on a
panning servo. However, after a brief search of the net, it appears that a
suitable laser would be over $1000. Are there any other options out there?
--
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