Hi Ian,
a suggestion to get you scratching your head

Would it be possible to add {MergeFields} to the email subject and content.
This would be particularly useful to customise and personalise templates.
for example:
Subject: Reminder Round {RoundNumber}
Dear {MemberName}
You forgot to submit your tips for Round {RoundNumber}
etc
I've used it in other software and find it quite useful.
cheers
Darren