best way to "parameterize" a tablename?

I have need to do something like this:

    if tablename = 'FOO'

        insert into foo ...
    else if tablename = 'BAR'

        insert into bar ... (exact same stuff)     etc...

I hesitate to use an execute immediate, due to the troublesome quoting issues, but is there a good way to do something like this?

    insert into $TABLENAME ...

Many TIA!
Mark

-- 
Mark Harrison
Pixar Animation Studios