Setting up an Advanced Home Network

[binaryops]

Current Network Setup:

DSL Modem -> Linksys VPN router -> Linksys Wireless router. My VPN router does the dhcp for my desktop(XP) hard wired to it and my Linksys wireless router's dhcp is turned off as is only an access point for my laptop(98se).

Linksys VPN Specs:
5 ethernet ports

Linksys Wireless G Speedbooster
1 10/100 ether port
4 10/100 switched ports

Proposed Network Setup:

I'm currently studying for my CCNA and just bought a Cisco 2501 and 2504 to help me in hands on simulation. I want to integrate my 2501 and 2504 into my current network and I'm sure this can be done some how. I know it sounds ridiculous to have 4 routers total on a basic home dsl connection, but it's purely for my networking experience and fun.

2501 specs:

1 ethernet
2 serial
1 aux
1 console

2504 specs:

1 Token
2 serial
1 ISDN Bri
1 aux
1 console

Can someone please help me incorporate these 2 routers into my network and how I would go about plugging them in and where?

 

[binaryops]

I recently added a cisco 2514 to my network after researching cisco capable routers directly connected to dsl modems.

2514 specs:

2 ethernet
2 serial
1 aux
1 console.

Can someone please help me in setting up my new network?

Thanks