Some wishes :
- The win32 install let choose an alternate disk for the data ...
Already supported. Just click the "Data Directory" entry in the feature tree, click "Browse" and pick where you want the data directory.
- The win32 install use the user variable PGDATA for the links towards configuration files (in ex. %PGDATA%\pg_hba.conf), it's more efficient when putting data on another disk.
Environment variables don't play really well with services, that's why we're not doing it. but if you are running in a non-service enviroment, there is nothing stopping you from using PGDATA just as you would on Unix.
//Magnus