Yes! Some, but only some of the Sony Digital8 camcorders can play the analogue 8mm/Hi8 tapes. You will then be able to capture the footage on your PC via firewire.
I would suggest you take an old tape to your local Jessops and try it. If you find a cam you like then find the best web price and as long as you have the sites details they will match the web price for you.
Just had a quick look on the Sony site and found this:
Digital 8 recording
High stamina battery life up to 12 hours
20x optical zoom
990x digital zoom
Click to DVD
i.LINK (DV IN/OUT)
12bit / 16 bit PCM stereo sound
Touch panel control
Memory Stick slot
MPEG MOVIE EX
Analogue input 8mm playback ability
I had temporary use of the Sony TRV33 . I managed to record stuff from my Sony Hi8 camera via it's analogue inputs incl SVHS onto mini tapes. Then firewired it across onto my PC and finally onto a DVD.
As long as the new digital camera has analogue inputs and specifically SVHS connection then it should be fine.