Cisco has recently opened up a self-service tool to convert CheckPoint Firewall configurations to Cisco ASA configs.
https://fwmig.cisco.com/
It is open to all the users registered on the Cisco website.
Try it out and let us know your feedback
The same tool also supports the migration of Juniper Netscreen Firewall configurations to Cisco ASA
https://supportforums.cisco.com/community/netpro/security/firewall/blog/2013/09/27/conversion-tool-juniper-screenos-to-cisco-asa
Thanks
Anand