But there are more experts on forums like Weight Weenies than this one.
http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=56170
The DT calculator is good http://www.dtswiss.com/SpokesCalc/Welcome.aspx?language=en
As long as you're not doing anything tricky (ultra-light rims, low spoke counts), bulding your own wheels is not rocket surgery. Modern spoke metallurgy makes them much more tolerant of amateur builders too.
@gbj_tester started
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http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=56170
The DT calculator is good
http://www.dtswiss.com/SpokesCalc/Welcome.aspx?language=en
As long as you're not doing anything tricky (ultra-light rims, low spoke counts), bulding your own wheels is not rocket surgery. Modern spoke metallurgy makes them much more tolerant of amateur builders too.