SpamAssassin v hardware solns

[Roger E. Rustad, Jr.]

Can anyone here point to any good information on shootouts between hardware 
firewalls (such as Barracuda's Spam Firewall 
[http://www.barracudanetworks.com] or St Bernard's ePrism 
[http://www.stbernard.com/products/eprism/products_eprism.asp]) and 
SpamAssassin?

Thanks in advance,
Roger