Meta Package "currency"
Provides shops, barter tables, safes, and multiple denominations of currency, called "Minegeld". Originally written by Dan Duncombe, but maintained by me.
The Dreambuilder Modpack -- Everything you could want to build with, and the tools to do it.
Slot Machine Mini-games
Provides an "engine" to drive simple slot machines (includes two). Spins reels, takes in/pays out in Minegeld (Dan's currency mod), etc.
Adds bank accounts with ATMs and Debit\Credit cards.