If I go to Staples or BestBuy, will an upgrade (60 or 80) 2.5" HD work
on my ThinkPad? Do generics mess up anything? (A IBM rep actually
told me to go to one of these places, but I'm thinking he believed I
wanted some external ball-and-chain.)
Hitachi Global Storage Technologies was formed by IBM and Hitachi and part
of the deal was that the entire drive manufacturing operation at IBM was
transferred to Hitachi, so the Hitachi drive is the closest thing you're
going to find to an IBM brand disk--it's no more "generic" than a new
Thinkpad (now made by Lenovo).
In general, a newer laptop drive will work fine in an older laptop.
Upgrading from a small 4200 RPM drive to a large 7200 runs a slight risk
that there might not be adequate cooling but even there the risk is
small--the drive manufacturers compromise performance in laptop drives to
keep the heat dissipation and power consumption under control, so this
would only be a problem if your machine was marginal to begin with, which
wouldn't be a Thinkpad.
On the shelf at Best Buy you will find a kit from Hitachi specifically
intended for people who want to upgrade their laptop drives. It contains a
60 GB or 100 GB 5400 RPM drive, a 2-1/2" USB 2.0 drive enclosure, and
instructions and software for copying the data from your old drive to the
new one and then exchanging the drives. If you've never done this sort of
thing before that might be a good option because it gives you everything
you need except hand tools in one box, and you end up with your old drive
in an external carrier so you can use it for whatever purpose you like.
There of course a small chance that you will encounter an
imcompatibility--this is always a risk when upgrading hardware, but that
risk _is_ small. There's also the chance that you'll get a broken drive,
but that's the risk you take with any purchase of electronic equipment.