Replying to Need advice on BC gear (probe, shovel, pack, snow study kit)

Title pretty much says it all.
I'll already have a beacon so I don't need that.
I know I need at least a 300 cm probe.
Avalungs? Should I just get a blackdiamond pack with one built in?  I think an avalung would be a good idea probably right.

I'd like to keep it not too pricey, but I want quality stuff, so if you know of a few of one item that are different prices and are both good list them both. 

Also what gear/brands should I stay away from.
I'm going to WWU so I'll be skiing Baker this year and I want to go out of bounds and ski BC stuff.  Thanks in advance guys.  I'll be taking the class at Baker too about avalanche safety and whatever else it is about.