The computer should have a 1394 acquisition card (used to collect DV tapes), and it is better to have a high configuration, so that the video processing speed is fast. The hard disk should be very big. Prices range from 2000 to 20000. Professional workstations cost tens of thousands. Professional graphics cards also cost thousands.
Monitor, just use a 2 1 TV.
To achieve good results, it is best to install a small DV rocker arm.