Once you are up & running I can think of 2 other things that may help you.
1: They do an internet savings account which must be opened on-line, this pays 8.5% as opposed to 6.5% for a savings account opened in branch.
2: If you do open 1 of these then the interest is paid monthly on the anniversary of the date you open it so make sure you do that on a date to suit you. You can then transfer the interest into your current account (if needed) or any of the initial investment without losing a months interest, hope that makes sense!
Last but not least the staff in branch will not help with any internet opened account, they simply tell you to go back & do whatever you want on-line!