Just a broker, try Crawford Mortgage @ Melton.
But if you want to bounce some ideas or strategise/structure aligned to want you want long term..then you can search the forum. PT Bear, Richard Taylor, Rolf and more...
Alexlee is right, i had to goto a bank who could work with my situation and for future IP acquisation..and interest rates was not the main/only criteria.
Anyways its safer to assume + 1 or + 2 % of curent rates to run the numbers to have a default built-in buffer...
Good Luck
K