Reconstituting flows

[newton]

Hi all.  If I have a big fat pipe I want to monitor, and I am wondering if it 
might be better if I buy two boxes, and a tap to do the work.  With the tap, I 
would split off both sides of the full duplex connection and send each side of 
that conenction to a single box running argus.  My question is, when Argus 
builds flows out of these on both boxes, how can I 'reconnect', or 
reconstitute these flows back into 1 flow?

 Anyone got any ideas?

Thanks

Chris