In the next few days I am soon to join Orange, after leaving AOL, and
shall receive an Orange Livebox, which, as far as I am aware, in
basically a normal wireless router.

I currently have a Netgear DG834G wireless router, and as the wireless
signal can fluctuate in our house (environmental reasons I believe) I
was thinking of demoting the Netgear to just an Access Point; having
the Netgear upstairs, and the Livebox downstairs with the phone line.

I really just need confirmation on how to go about this. I know I
shall have to disable DHCP on the Netgear, and change the SSID on both
routers to the same.

Now, if I change the "Internet IP Address" on the Netgear to the IP
Address of Livebox (making it the default gateway, in essence), and
change the former "LAN TCP/IP Setup" option from what was the gateway
to a new IP address within the range, would this be sufficent?

i.e.

PC --> Netgear (IP:192.168.0.10) --> Livebox (IP:192.168.0.1) -->
Internet
^
192.168.0.11____________________________DHCP/

(I hope that diagram comes out right).

Basically I would be changing the Netgear Router's static gateway IP
Address into just a static IP Address for access, and sending any
traffic through to the Livebox Static IP (new gateway) through what
used to be the IP that would access the Internet...

Or am I just over-complicating things?

Would this work, and would my computer upstairs find the SSID (Ch:9) on
the Netgear, send traffic through to Livebox, with the same SSID
(Ch:10) and DHCP come from the Livebox...