Where would you upload it from?  Does your game provide some kind of file dump of the guild bank?

How about a WoW addon type of thing much like ther Roster Importer?  That would be PERFECT

Yes wowroster does have a good system, guildportal should model a new bank content like wowroster.For World of Warcraft it is utlilized by a User Interface addon that creates files for uploading onto a WoWroster Mysql page. I bet you could do something like this for guildportal that could be applied to any game that allows user interface addons. It would be something worth while, but making the addons for the different games would take a good amount of time, although very much still worth the effort.If your guild leader is on top of things and knows the guildportal system, it is fairly easy to keep a bank updated. The real improvments in making a new roster/bank content with uploadable profiles that would workmuch like wowroster is the multifunction of the content, and also the eliminated time the guildleader spends manually updating the guild bank invetory. This would be awsome, and offer even more, to people using the guildportal system.