This is super important. Use Typekit, or another font that allows embedding (Lost Type Co-Op is great http://losttype.com/browse http://losttype.com/browse). 

This is super important. Use Typekit, or another font that allows embedding (Lost Type Co-Op is great http://losttype.com/browse http://losttype.com/browse).  If it's not "Knockout", I'd love to know what it actually is. Always need more good fonts.