Rates are going to rise - but no one knows by how much or when, so whatever you do, don't listen to anyone who tells you they can forecast such information.
Why don't you put some off your money into the BOI option and keep the rest in a 6 month term account - that way you benefit from the higher rate availabale from BOI but will still gain from the higher rate in the future.
The banks would love you to commit to a long term now - they'll make a mint when rates go up.