I just recently remember a good plugin on a server I used to go on. It is called time is money. For every minute a player is on the server, they will be given a set amount of server currency. This could be a useful and fun plugin on the server to boost the use of the player market and get more money flowing around.
As Shardos said money is pretty easy to get already, as you can get money from voting as well as jobs at Cabin Mate rank. I will talk to Food and Ben about it though and get their opinions on it. We always appreciate it when players recommend plugins and give their thoughts on the server. 😀