[color=993399]D[/color][/b]ude,
just ploping a new 68000 in the socket will have no speed gain whatso ever, since the clock speed is the same
and with a 68010, you would be lucky to get a 0.05% gain in performance
the 68020 has a different pinout and wider buses, and therefore will not work without alot of extra circuitry
my advice is to buy another computer...