I want to replace the stock 80GB HD on my first-gen 2.0ghz Macbook, and I'm in a bit of a dilemma... any help would be appreciated. I originally decided on a 250GB WD Scorpio - decent reviews + prices. However, I then read that these drives often seem to emit 'clicking' sounds during use... and having read a few more user reports, it seems they are also prone to S.M.A.R.T failures. So then I looked at the Hitachi 7k200, which, according to the reviews I've read, seem to be the fastest and best-performing of all 2.5 SATA drives. Only problem is they're also quite a bit more expensive, and in slightly lower capacity. So now I can't decide which one to go for. The Hitachi is much faster, yes, but the speed isn't necessary at all (not that it wouldn't be nice, of course) - plus I'm concerned about the noise and heat that the 7200RPM drive may generate. The WD Scorpio seems great, but I'll always worry about the drive's reliability. So, anyone here installed these drives on their laptop? I'm more keen on hearing how the Hitachi fares. Lower heat + noise and battery life is much more important to me than speed or even capacity (200GB is enough for me). Or is there another, more reliable HD out there that would be a better option for me?