MYOB software cost?

Can anyone recommend a cheap place of purchase for the accounting software package “MYOB BusinessBasics”?

I did a search in google with the following results:
Officeworks is selling it for $144.00
MYBO directly has it for $149.00
i-Tech on line has it for $129.00
CompuSolve on line has it for $145.00
ComputerAllience on line has it for $99.00

As one can see there is a fair array of cost difference, has anyone else recently purchased the software cheaper than above? OR recommend any of these outlines to avoid purchasing through?

Cheers,
GeoffB