Is it really worth all this sweat?   How hard are they to replace?
How sensitive are you to failure? (cost and downtime)

Try running a pair at the anticipated power level 24/7 and see how
long they last.
--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.