Owh, you already posted again
Ehm...an external HDD is a good option, with Win98 you'll need to install a driver for it but that is quite easy.
If you want to buy one I would recommend you take a known brand like Seagate or Western Digital (or Maxtor, this brand has some easy to use externals under the name Maxtor One Touch).
But maybe there are other options known by other members...
Robin