The only reason I still have query browser on my computer is because it has the transaction start and stop buttons.
I can start a transaction, run an update, then query the same table(s) using the same connection so I can see if the changes happened correctly, and rollback or commit depending on how things went.
I would really like to see this kind of transaction control in SQLyog.
SQLyog is a boon to my productivity.
This would just make it that much better.