here's an idea you may or may not like but why not use your program to build something like http://neopets.logicalgamers.com/pound that has been offline for a few years now all it would really take is have every logged in account refresh http://www.neopets.c...get_adopt.phtml every minute or so (or more or less) then upload the results when ever you currently update your pricing db
having a window like the price checker would be an easy way to display the results if you don't wanna make a page for it
it would also probably make doing an auto adopter fairly easy as well because then it's just a matter of when something matches the criteria just loading http://www.neopets.c...rch=PetNameHere then doing the post call for the adopt button
and on another note would you ever consider releasing a stripped down version (like none of the bots) but having some sort of integrated API or scripting system (either c# or something like javascript or visualbasic or anything you want and could make work) because while i like your scripts i have a few ideas that really only work if one person does them and while i could do all the coding a lot of what would make them work well is stuff you already have done (pretty much all the stuff your scripts already share moving items, updating the shop, getting from bank and till automatically, etc...) and your price database is probably the most accurate out there and if i was to make my own db it wouldn't work as well without the accuracy