Perth is awesome if you can stand the isolation, laid back attitude, lack of customer service, the nanny state mentality AND THE DRIVERS!!!! But our interest rates are hitting rock bottom and the house and land values are slipping, while rents are still sky high, so it's an investors market right now. Good time to come re-establish yourself.
Musicwise it's a wide demographic but in Metalcore and emo cover bands dominate the inner city venues. There is a strong indi scene here too, as well as lots of cover bands. Check out some local music resources here:
http://www.xpressmag.com.au/ www.westernfront.com.au (Metal)
www.perthbands.com.au (I'm SOU812 there but hardly post just tend to lurk)
And yes you'll need an adapter . . . or just go to one of the stores here - Oh yeah...speaking of stores you won't get the choice of gear you're used to here - or bands. Or venues.
Oh yeah, and no plinking unless you're rural/country. . . and given your current location its probably fair for me to say you'll hate the choices afforded you in that regard too.
I agree that of the places you listed, I'd rather stay here...or maybe move to Texas
