I'm not sure if this is worth documenting, but pg_dumping mixed-case tables with the '-t table' option appears to not be accurately documented for cmd.exe. Here are my four attempts, with only the last as success:
Intuitive (supplying "My Table" like "My Database"), but not correct:
C:\>"C:\Program Files\PostgreSQL\9.1\bin\pg_dump.exe" -U postgres -t "My Table" "My Database"