Bonding with Cisco IOS

After a few nights of meddling with my configuration, the following setup is working well for me. I would like to share it with the community.

Perquisites

Ask support for a unique IP address for the dialer interface of each of your ADSL lines
You will also need a static block for your routing IP address and any external clients, you may also use one of these addresses for NAT (more on that later).
Configure Clueless to route your static block down each of the ADSL lines

My Setup

Three ADSL lines provided by AAISP
Cisco 2821 running IOS 15.1
Three WIC1-ADSL and an NM-ESW-16 switch module.
Internal ADSL interfaces allow me to run the setup in PPPoA mode. Modify your dialers for PPPoE if you are using external bridges.

Configuring your Dialer interfaces

interface ATM0/0/0
 description 01234567890
 no ip address
 no atm ilmi-keepalive
 hold-queue 224 in
 pvc 0/38 
  encapsulation aal5mux ppp dialer
  dialer pool-member 1
 !
!
interface ATM0/1/0
 description 01234567891
 no ip address
 no atm ilmi-keepalive
 hold-queue 224 in
 pvc 0/38 
  encapsulation aal5mux ppp dialer
  dialer pool-member 2
 !
!
interface ATM0/2/0
 description 01234567892
 no ip address
 no atm ilmi-keepalive
 hold-queue 224 in
 pvc 0/38 
  encapsulation aal5mux ppp dialer
  dialer pool-member 3
 !
!
interface Dialer0
 ip address negotiated
 ip virtual-reassembly in
 encapsulation ppp
 dialer pool 1
 ppp chap hostname <yourAAISPuser>@a.1
 ppp chap password 0 <yourPasword>
 no cdp enable
!
interface Dialer1
 ip address negotiated
 ip virtual-reassembly in
 encapsulation ppp
 dialer pool 2
 ppp chap hostname <yourAAISPuser>@a.2
 ppp chap password 0 <yourPassword>
 no cdp enable
!
interface Dialer2
 ip address negotiated
 ip virtual-reassembly in
 encapsulation ppp
 dialer pool 3
 ppp chap hostname <yourAAISPuser>@a.3
 ppp chap password 0 <yourPassword>
 no cdp enable
!
dialer-list 1 protocol ip permit
dialer-list 2 protocol ip permit
dialer-list 3 protocol ip permit
!

Configure a virtual interface for your router IP address

Use the first address from your block

interface Vlan2
ip address <fromyourblock> <yoursubnet>

Upstream load balancing using CEF

ip cef
!
ip route 0.0.0.0 0.0.0.0 Dialer0
ip route 0.0.0.0 0.0.0.0 Dialer1
ip route 0.0.0.0 0.0.0.0 Dialer2
!
int Dialer0
 ip load-sharing per-packet
!
int Dialer1
 ip load-sharing per-packet
!
int Dialer2
 ip load-sharing per-packet
!