bank deposit % rate!

[EDManual]

I have some thousands, and rather than buy a new Porsche Boxster (haha), will put it in the bank for a few months before I start drawing on it for stages of a new house, maybe 2 to 5 montsh before I need to start. Am with Commbank, and they give you 2.5% interest! I am not wanting to do a term deposit, but found Bankwest give you 4.2% for the first 6 months and you can take it back out whenever you want it. So will do that.

The dumb thing is though, Commbank owns BankWest, and I am with Commbank, so I asked can you just match it rather than having me have to open more accounts and then scrap them after 6 months or so and they wont...

Any other ok rates anyone has with banks that seem 100% not going to go broke?