Toyotas in general are extremely good cars.
Yes, go for it.
As far as audio goes, I would recommend going to an electronics store and asking some questions. I have the factory speakers in my Honda Civic and they sound beautiful (they're alpine-made, so it makes sense, haha), but I have a after-market stereo, made by Pioneer. I'm sure lots of things will work for your new car.
Good luck, and enjoy; you're making a great choice not getting a crappy American POS.