Gt 640 for Heavy Maya work

I was wondering if my current setup would work for a massive project I am undertaking where I have to learn maya then use it everyday for a year and then I get a fat check :D If there are any upgrades I need I have to let them know upfront


CPU 5.6Ghz Core i5 Quadcore ivy bridge
Ram 16gb 2.6Ghz corsair vengence
Gpu 3gb overclocked edition gt640
8tb storage onboard
ssd 256gb

os x 10.8.4