Ah, ok got it. Those don't look bad at all. I'm sure they are comparable to the Dunlop Graspic HS-1's that I got. Both are really winter tires.
I'm sure you could find a steel wheel that fits, but to be safe I'd just make sure you got a Subaru set.
I'd go with the Tire Rack deal...
That way you'll get everything you need from one place and you'll know the wheels fit.
Here's the Performance Wheel website...
Give them a call about Subaru steels.