Newegg has DS3 rev1.1(newest rev) $99 + shipping after applying the coupon code EMC413FGIGA
linky
Here are the major differences of the revisions
Rev. 1.0: FSB 1066MHz, one system fan header, ALC883 (Vista Basic Logo)
Rev. 1.3: FSB 1333MHz, one system fan header, ALC883
Rev. 2.0: FSB 1066MHz, three system fan headers, ALC888 (Vista Premium Logo)
Rev. 3.3: FSB 1333MHz, three system fan headers, ALC888
linky
Here are the major differences of the revisions
Rev. 1.0: FSB 1066MHz, one system fan header, ALC883 (Vista Basic Logo)
Rev. 1.3: FSB 1333MHz, one system fan header, ALC883
Rev. 2.0: FSB 1066MHz, three system fan headers, ALC888 (Vista Premium Logo)
Rev. 3.3: FSB 1333MHz, three system fan headers, ALC888