I am just getting started with my CCNA and I found a great deal locally on the following:
1) Cisco 2620 Series Router 1x Fast Ethernet 10/100 Interface, 1 Ethernet + 1x T1 CSU/DSU Interface
2) Cisco 2620 Series Router 1x Fast Ethernet 10/100 Interface + 1x T1 CSU/DSU Interface + 4x Serial Interfaces
3) Cisco 2514 Series Access Router 2x Ethernet Interfaces (Ethernet transceivers included) + 2x Serial Interfaces
4) Cisco 1900 Series Switch 24 Port Vlan Capable / Enterprise IOS
5) Cisco 3500XL Series Switch 24 Port Vlan Capable.
I am in the process of configuring everything and have read a ton of articles about how to setup a lab, but I have not seen much on connecting the routers together using ethernet. The setup did not come with any serial cables and most of the advice that I see out there is based on a serial connection.
Shoud I connect all of the routers to the switches? Or can I chain them together with crossover cables. Which router should I use as the parent? I was thinking of using the 2620 with the 4 serials so that I can set it up for FR when I get some serial cables.
I eventually will get the serials if I really need them, but for now, help me get this all connected. I may be way off in my thinking, I am just getting started in the networking world.

Thanks in advance
Josh