Idea for guild bank

in the guild bank the guild leader sets buy/sell price for all the items in gold coins. anyone in guild can buy/sell at these prices.
for example bank buys water at 45 coins per 10k water and sells at 50 per 10k. if guild leader notices that the bank is getting low on water he can adjust the buy to 50 and sell to 53. that way all guild members can buy/sell their resources easily and help out guild mates.
bank can also make loans with interest so i can borrow 5000 coins worth of water, make bread, then sell the bread back to bank to pay my debt.
upgraded bank can hold more resources.
upgraded bank can also post trades if owner of bank also has trade office. every level up the bank is allows 1 extra trade in TO. these bank trades dont expire after 6 hours like normal trades. so bank manager can seek out good deals...
should be easy to code... can use existing graphics... etc.
if you like this idea i also have clever idea on how to do guild vs guild fighting. (instead of player vs player)

Okay, the GB ideas look ok. We just need to see one put into play!

Now, regarding the g vs. g fighting, put it out there! Always willing to see new ideas, myself.

basically every guild gets an island. every guild member is able to put one general and troops on this island to defend it. once a week the island gives resources to each guild member with a general on the island. your guild can declare war on other guilds which opens up that island as an adventure. if your guild is able to get an army to the center of the enemy's island your guild gets the resources instead of the enemy. the amount of resources you get from defeating an enemy guild is influenced by the difference in guild strength between attacker and defender. so if my guild has 10 level 50 players and your guild has 20 level 25 players we are even so i get lots of resources. this will discourage a big guild from ganging up on a small guild and it will encourage several weaker guilds to ally to take out a stronger one for lots of resources.
benefit for bb is that players will be encouraged to buy another veteran with gems and the constant fighting might drive gems sales... would be easy to balance and would satisfy the PVP cravings... would also be easy to implement as existing graphics could be used