E-commerce payment systems for apache/mod_perl

[David Dyer-Bennet]

Any obvious choices for a relatively small-scale e-commerce payment
processing system for a server running apache / mod_perl?  
-- 
David Dyer-Bennet, [EMAIL PROTECTED]  /  New TMDA anti-spam in test
 John Dyer-Bennet 1915-2002 Memorial Site http://john.dyer-bennet.net
        Book log: http://www.dd-b.net/dd-b/Ouroboros/booknotes/
         New Dragaera mailing lists, see http://dragaera.info