Interfaces are available commercially or may be home built as long as You can read a simple circuit diagram and are a bit good at soldering <grin>
For the more modern software using a Sound card I have found the cheapest 16 bit cards work best for me and there is less risk of “zapping” an expensive card with My Linear as an incentive !!
So have a browse round the local computer rally is my advice , Its a way to escape the household chores anyway isn’t it ? <grin>