Tomorrow brings Diablo 3's fist major Patch, 1.0.3. Along with it comes a rather large nerf to Attack Speed, I am just posting this in hopes people realize not to buy Attack Speed items from the auction house. Your items will be nerfed tomorrow!
As a reminder, we will be nerfing "Increases Attack Speed" (IAS) effects on all items except quivers with the 1.0.3 patch. This change does affect unidentified items as well, as item affixes and ranges are determined at the time of an item being dropped, and not when identified.
Characters with IAS on their items will see a drop in their character sheet damage, as character sheet damage takes into account attack speed among other factors.
This change should not be confused with the Legendary buffs coming in a future patch (not 1.0.3), and those buffs, as previously mentioned, will not be retroactive.
You can read more about these and other upcoming changes in the 1.0.3 Design Preview blog.