Is this multiple NIC/ISP configuration possible?

[mr.sparkle]

One of my computer’s setup consists of:

NIC A connected to ISP A, connected to a newsgroup server via SABnzb through SSL (on port 563).

NIC B delivering content locally through a router, which is connected to ISP B.

I'd like to keep my ISP A connection saturated but of course web browsing on that PC suffers. Is it possible to make it so that web browsing (and I guess any other non SABnzb-related ports) pull from ISP B through the router but leave alone the NIC A connection to ISP A?

Running Ubuntu 10.4 for what it’s worth.

Thanks in advance

[shypike]

Only through static routing set up outside SABnzbd.