oh dear, you do sound confused, dont worry tho geezer
we'll get you sorted....

btw, did you read my reply to your post on the production page???

the sound card is just a recording device, i seem to get the feeling you want to use it for mixing your outboard synths etc...is this right???

if so, dont bother, use an external mixer (which i talked about in the other post) and use the pc to control the synths (indigo & 909) via midi cables ( i assume you have a midi interface on your pc)....

connect the synths to the line inputs on each channel on the mixing desk with 1/4 inch jack cables

connect the mixer to your amp and speakers

and connect the master outs on the mixer to the soundcard input (probably 1/4 inch jacks or xlr to jack)

connect any outputs on the soundcard to line inputs on you mixer (prob 1/4 inch jacks) as you did with the sytnhs...this will allow you to use a soft sampler etc and mix it down on the desk along with your synths....

i think thats about it...

check my other post re: mixers etc and Icq me if you need to chat about it - i can definitly help easier that way....
dont like to think of that lovely gear of yours just sitting there & not making phat noises!!

good luck!