Running two multiauthor blogs with Radio

I guess I’ve decided that I will add to my multiuser blog tool setttings the Salon blogs categories from other Salon bloggers I’ve subscribed to. This means that at first everything that comes in from any source, by me or by anyone else will first show up in my x-syndicate channel.
My discretion will come in when I look at my desktop weblog homepage and see new content from the aggregator already posted there. If it is Salon blogs-related, I will add it to my salonika channel and probably take it out of my x-syndicate channel.
I’d still be interested to know whether it’s possible in a some script-crafty way to stream some subscriptions to one category and others to another.