I just ordered my new wheels and tires from The Tire Rack today, and wanted to let you all know that the OEM WRX Take-offs are now only $69 each! Hard to beat for one of the lightest 16" wheels around.
I'm getting these, and the 225-50-16 Yokohama AVS ES100 tires. Whole package, including mounting, balancing, center caps, and shipping for $665.
[edit: cross-posted to a couple relevant threads...]