At the risk of re stating the essential points by the 2 Marks

above:
If all you want is a DVD disc with the Hi-8 footage
Loan the Hi-8 camera ( with its leads) and find someone with a settop recorder:
The advantages
1)Simple real time transfer with no special need to get suitable Digital 8 camcorder, and no need to get an external Analogue to capture digital device ( esp for one off use) .Note that If you can get a suitable Digital 8 camcorder it can be used an a "normal" Hi- 8 playback device or even better via DV if the settop recorder has one.
2)The other advantage ( unless you are itching to show what your PC can do, is not really needing to involve it in the capture process in any way
Once you have your DVD if you then wish to "Edit" its contents on a PC .
Im sure advice abounds here and out there about how you can go about that