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That's like asking "anyone know any good apps?" :D OK, well there are a few good ones I can think of, many of which will be totally irrelevant to a lot of people...

SETI Dockling - controls SETI and gives a handy % done readout in the dock.
There's one that tells you if classic is running, I think it's called 'Clissic?' but I'm not sure.
There's one that lets you access all sys pref panes from the dock. I used to use it, but I don't any more. can't remember what it's called, either... :)
 
classicspy is not a dockling, but a must have! and I love Transparent dock!

while were at it, swap cop. I did the swap through the terminal once, what a pain (though possible)
 
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