Creating several contacts and associating with an account when converting a lead

Creating several contacts and associating with an account when converting a lead

Is there some way to still tie in to the Convert Lead button in the CRM UI? It seems once the Lead is converted that I can no longer access the secondary contacts information that only lives there and putting that on the account or the other contact to create it from that is obviously incorrect.  I know I can do it all in deluge but wondering where the nicest way to tie in is and if it's possible to still make use of the convert lead UI in CRM.