Hi I was thinking of using amember for a congress registration site. I need registrants to be able to do the following: * Select registration fee, say $100 * Select optional event, say $20 Does amember allow for combining of two items (and calculating a grand total) to be submitted to the payment processor (in my case WorldPay)? If not, is this possible as a customization? Thanks in advance for your help Thomas PS I am using a Postnuke environment and am also dreaming of integration ...