Data storage question

Hi,

I am trying to write a script that stores a avatars name and amount of credit/debit of $L they have.

For example client 1 has $300 positive account they take out $100L obviously the total is now $200L is there a way to do this with a relatively large group of people.

what is the best way to store this kind of information?

any help would be much appreciated

The best way to store this information is outside of SL, definitely. Look into the email script functions, and such, as you're looking at server stuff, unless you want a system that's prone to losing information.

Better yet, use llHTTPRequest and/or the XML-RPC functions. Much faster than email going out-world.