Dell.com has the Western Digital 200GB Caviar Special Edition Internal EIDE Ultra ATA/100 7200RPM Hard Drive with 8MB Cache - Retail Kit for $222 with $200 rebate listed on their page.
http://accessories.us.dell.com/sna/productdetail.aspxc=us&l=en&cs=19&sku=A0080840
http://accessories.us.dell.com/sna/productdetail.aspxc=us&l=en&cs=19&sku=A0080840