I've got a 1994 Accord EX which had a worsening problem a few months
ago, where the car would shake (fairly violently) during braking at
high speeds - especially downhill and with a carload of people.  To
try to fix the problem, I had the brakes - pads and rotors - replaced
about a month and a half ago.  Immediately after replacement the
brakes were squealing and grinding, so I took the car back to the shop
and had them install another set of brakes.  The same squealing and
grinding occurred again, but it seemed to be lessening over time, so I
decided to drive it for a while to see what would happen.  The result
is that now - about 5 weeks later - there is very little squealing and
no grinding, but the original problem of violent wobbling during high-
speed braking is back with a vengeance.  I've recently had all four
wheels aligned as well, and I'm becoming really frustrated with the
whole situation.  Any ideas?  Thanks in advance for suggestions.