xingyi, taiji, bagua

[Azure]

I'm sooning moving and have found schools for all three martial arts in the area I will be going too. They offer Chen Style Taiji, Ying Yang Ba Gua and a Xingyi school (I forget the name of the specific style). I have never studied any of these styles and was wondering if anyone could give me a little info on the differences etc? Also is one of these better to start out with? Can you combine the learning of 2 (or even 3) of these?

Also, While I know school for these exist, if anyone can actually recommend any in Sydney, Australia for any of these styles I'd apreciate it. I know Chen Xiaowang lives in Sydney does he teach?

Any info would be great.

Thanks in advance