differentiating traffic on Vlans to two different Internet connections

Hi Guys,

the problem i have is two sets of users on two different vlans they want to use two different internet connections. one going over Sdsl and the other over wimax, they are cisco 2960 switches involved and a 2600 series router. as far as i can tell this can be done with two routers being gateways for the two vlans. is there a way to just use a single router to pass the traffic to relevant interfaces?

Many thanks

Zed