I have found this new Microgaming slot review on the slots-online.ws:

Cashville is a 5-reel 20-payline  highly entertaining slot machine game. Wild and Scatter symbols, a double your money Gamble Feature and for the first time a choice of 4 entertaining and rewarding bonus benefactors result in an impressive range of thrills and excitement packed into a game with serious and varied reward potential.

The max jackpot of Cashville slot can reach up to 500,000 coins. Players have 50-50 chance on doubling their wins with Bonus Feature. Gilt-edged share certificates, Havana cigars, priceless jewelry and lots of lovely greenbacks on the payline will enhance your winning.

The game has 3 bonus screens:
Bill Bouillion where you choose Bill's oil rigs,
Sir Sterling - select up to three of Sir Sterling's vaults,
Bette Boodles screen - selects up to three dogs for hidden bonuses.

See full review of Cashville here.