ROUTE-MAP RE-ROUTE NAT TRAFFIC..

ip nat inside source route-map wireless interface fastethernet0/0 overload
ip nat inside source route-map t1 interface fastethernet0/1 overload
!
access-list 1 permit 192.168.1.0 0.0.0.255
access-list 2 permit 192.168.1.0 0.0.0.255
!
route-map wireless permit 10
match ip address 1
match interface fastethernet0/0
!
route-map t1 permit 10
match ip address 2
match interface fastethernet0/1
!
ip route 0.0.0.0 0.0.0.0 1.1.1.1
ip route 0.0.0.0 0.0.0.0 2.2.2.1 20