for you guys that are complaining about the new bios incorrectly reading the size of your harddrive, it is reading it correctly. it was just always wrong before. this is the math behind it:
74,000,000,000 bytes * (1 kb / 1024 bytes) * (1 mb / 1024 kb) * (1 gb / 1024 mb) = 68.91787052154541015625gb ~= 69gb
the key here is to realize that when you buy a 74gb hd, you're buying a 74 billion byte drive. my 120gb western digital is the exact same thing - windows recognizes it as 111gb. just plug in whatever size drive you have in place of the 74 and do the math, and you'll get the actual size in gigabytes. those crazy marketing ploys....