Frys has the DW51 tweeters at 83% off!
Not the best tweeters in the world but does the job. Reviews on web are not too bad
From Fry's website:
"The DP Audio DW51 360W High Efficiency Dome tweeter provides crisp high frequency audio with an easy to install design. 4 mounting options ensure a clean installation in almost any application."
$0.99 WITH STORE PICKUP