If you blinked while reading the 360 Elite press release you might have missed it:

the 120GB detachable hard drive allows gamers to save their games and store television shows, movies, music, pictures, trailers, levels, demos and other content available from Xbox LIVE Marketplace.3 The hard drive is sold separately for an estimated retail price of $179.99 (U.S.).

Ouch. Really? $180? That puts everyone who has bought the Premium model in a tough situation -- are you willing to pay $200 for this when the difference between the model you own and the model that comes with the drive is only $80? I know that I'm not.