[dba-SQLServer] Installing SQL 2000 on a server that already has SQL 2003

Hi All:

Installing MSSQL 2003 on a server already hosting MSSQL 2000 is a simple
task. The installation routines asks how you wish to name the new SQL 2003
install so it does not conflict with the present MSSQL. 

I have not tried to install MSSQL 2000 on a box already hosting MSSQL 2003
and was wondering if anyone has done this process and if there are any
issues to manage.

MTIA
Jim