Rumor has it that the 60GB drive by itself will sell at a $100 price point, like the original 20GB. It's also rumored to include an Xbox Live 3-Month card and a headset. Seems like a decent deal, unlike the abhorrent price point for the original 20GB without any extras.
Although, if you're interested in just getting a bigger HDD, that GameDealDaily guy has the 120GB for $100 + shipping today.