Glad I checked out this thread :-D
-D-: and anyone else who cares, the guy listed on amiganews.de , Ed Jeffries does a great job on fixing miggies. He repaired a dead parallel port on my first 4000, and I got my 'refurbished' 4000/WarpEngine from him as well.
Darksun: Hmm, my 4000T is acting up like yours was.... Doesn't seem to provide enough power, but on the +12V line, could this be leaky caps too? Ugh, will have to pack it up and send it to Ed Jeffries....