I hate replying to myself... but just in case someone browses to this old thread (which itself has gotten bumped to the top of the list because of spam activity)...
There are now shortcuts to a pre-configured custom bingo card design that let's you print call sheets and draw chips for regular numeric cards easily.
It's here:
http://print-bingo.com/print-bingo-cards.php#num. Click on the "numeric bingo cards for customization" link.