aargh - can that be the last time that ginormous photo is quoted/reposted please? It's playing havoc with screen re-sizing on the mobile Im reduced to using at the moment..
What sample rates do you want to use? If you need no more than 24 bit, 96kHz then that's been available digitally on pro/semi-pro cards for about 13 years and some of the older cards still even have drivers updated for them (perhaps not so for Mac).
The RME Digi 96 can be picked up for about £60 max on Ebay, Frontier Wavecenter and Dakota can go for as little as £40, Prodif gold is about £40 too. Digigram did some good cards back then too which can be had cheap now. So much out there cheap that can do 96k or even 192k (in the last 5 or 6 years) secondhand - you just have to check that drivers are updated and that you dont go for fancy PCI-X with your pc just to be modern (else you'll have to buy new, expensive cards too).
If it's just digital you want then dont go too crazy - you pay more for DSP or good convertors, none of which you need. In my opinion though, a good make of card with good drivers is easier to get working well than stuff on the motherboard. Pick older RME and you'll find extensive support in Linux too.
