Way 2 configure 2internet connections.

Hi all,
Hope I will be able to get solution to my question.

I am network admin to a company ,
there is customer service dept (call center) with 20pc’s along with other depts and all r connected to network on 2k3 with xp prof at end user , but as customer services want to use a dedicated Broadband line to make there dept fast , with the normal internet line ,
Is there anysolution where i can make that dept to use the normal LAN connection aswell as dedicated broadband line.

Pls help
thanks in advance