If you stick a 24/96 6 channel A/D card into a 861 it will cost you also around $1500. Every analogue output card is also around $1000. So take the base 861 price (includes a IA00 these days for the RC) and add $3500 for 8 channel analogue out and 5.1 analogue input. Than look at the price again.
If you want more like on screen display, component video switching add again $2000 or so. Need tape output, or headphone socket, yet another card needed, ony $1000 this time. But Oh oh, 861 full what now ?
Jaco