Ive a main router that has gateway 192.168.0.254,
The second router to use the gateway/subnet of the first, and set the ip address to to 192.168.1.254.
On the primary, print server, media server pc, amd other devices are set up as static ip.
The second router will be used soley for wireless access.
You can still share ect by using the UNC of the machine or ip address
both have dhcp enabled.
Primary router (connected to WAN)
SSID:Primary (or watever)
SSID: WAP01 (or watever)
You could add more if you have a large house with dead spots.
With my setup, the kids and consoles use the second router(plus used as a dead spot access), while the primary is used for devices as above,
pc systems,IP camera and VNC. I did have a access point in the shed for when in the garden with laptop.
OR....easiset way is to just have the link cable as above, but set second router as DHCP off, and give a static address.
If you have the option to use as access point then you can just use that.
Hope it helps