Can't locate any plans, but try these for ideas:

http://www.coldstreamfurniture.com/
http://www.oasisbenches.com/oasis_benches.htm
http://www.rockler.com/CategoryView....er=desk%20plan
http://www.lukemccoy.com/pics-videos...96780151760577
http://www.flytyingfurniture.com/
http://globalflyfisher.com/tiebetter...ench/index.php
http://finewoodworking.taunton.com/i...fly-tying-desk

and right here on FAOL there's lots! Start with reading http://www.flyanglersonline.com/feat...cast/rc194.php

And do a search here on FAOL on "desks"

Good Luck!!!