Yeah, I noticed they were crazy expensive, too.

Here's the same one I linked to from Amazon, but cheaper on newegg:
http://www.newegg.com/Product/Produc...82E16833124001

And here's a wireless one I found for just a few bucks more, with the same amount of wired ports. I dunno, if might be handy if you plan on going wireless at some point, but it's up to you.
http://www.newegg.com/Product/Produc...82E16833124010