A colleague has alerted me to a useful TechRepublic article which details how to transfer your Cisco PIX configs to the ASA platform.  You can read about it here.

With the PIX now end of sale and due to be end of support in 2013, those looking at hardware refresh programmes might find this tool useful.  Another angle for those of you who don’t necessarily run a watertight ship would be to start from scratch and eliminate what you no longer need from your rule base.

From the same article, it seems Cisco will stop software maintenance on the PIX in July this year, so whilst support may continue to 2013, that isn’t much use if you have a bug that needs fixing.