While not as elegant as the Rowe and Perrin, Ira Woods have a few console sinks similar. Also keep an eye on Dougsdeals.com they have great deals on a variety of bathroom fixtures, faucets, etc.

Here is a link that might be useful: Ira Woods Console Sinks

Here is an ebay link to a brushed nickel stand but it is without the sink.

Here is a link that might be useful: ebay link to sink stand only

Here's a similar one; American Standard makes a bunch of more affordable console sinks.

Here is a link that might be useful: console sink

I don't think it would end up cheaper.. But take a look at Palmer Sink Legs..

I have been shopping for one of these also. Restoration hardware has a couple of metal consoles. One called gramercy park, another called Park which comes with round or square metal legs. They look very nice but don't have the shelf on the bottom though. Newport brass/brasstech has one with a metal basket on the bottom. Both of these brands are less than half the price of the Rowe and Perrin one you linked and come in several finishes.

Here is a link that might be useful: brasstech vanity