Tools
There are some tools I mainly use...
CAREUnpatch - Use this small x86 dos utility to rebuild CARE releases
PHXASS - Frank Wille's great assembler. For me the best assembler... (Well, I found two little program bugs in this assembler during my assembler sessions) :-)
IRA - For me the best disassembler (beta: 1.07)
WINUAE - The best amiga emulator for pc, great debugging functions
UltraEdit - For me the best text/hex editor for pc
...and some other stuff (ask for details)