Question About Subject Selection!

[Jarredz0r]

I'm currently in Year 10, and what I've decided for next year (so far) is the following:
Psychology 3/4
Spesh (GMA) 1/2
Methods 1/2
Physics 1/2
English Lang. 1/2
Accounting/Economics?? 1/2

I plan on doing an Eng./Commerce double degree at Monash, but I was wondering whether Accounting or Economics would be more beneficial for the commerce part of the degree. I chose between these two humanities subjects because it's what I find interests me the most, and I needed variety from my maths/science oriented selection. If I'm fine doing the double degree without either accounting or economics, it would allow me to take some other subjects into consideration (P.E to be specific).
Thanks!