160GB Western Digital HDD - $40 (25 cents per gig)
120GB Xbox 360 HDD - $120 ($1 per gig)
I heard somewhere, I dont' remember where, that there might be a 250GB Xbox package coming out. If the price falls in line with the 120GB drive, I guess a standalone 250GB will cost $250. I'm usually one of the last to jump on the "fuck Microsoft" bandwagon, but you know, fuck Microsoft.
On a side note, I should have bought an Elite. My 60GB drive isn't big enough.