You can fit a harddisk but you'll need to get one of the expansion board for it like the
SX-32 MKii. These go for quite a bit on ebay, the last one I saw on buy-it-now was £149.99 :crazy:
You'll also need a 2.5" harddrive and a cable to connect them (
obviously)
Oh and welcome to Amiga.org!
Andy