Join two subnets with routers

Hi
We have just joined two buildings together by Diginet or T1 with two Alcatel Routers. We want to use it as an extention of the network. Site one has a subnet of 192.168.0.1 - 254. It has a internet connection via a ADSL router IP 192.168.0.1 and all users must use it. They also have to link via the other router IP 192.168.0.230 to the other site with router 192.168.1.230. All users must also be able to access all printers on the 192.168.1.?? network.

From the other building all users must go through the 192.168.1.230 router and see all printers and the servers on the 192.168.0.?? network. They must also be able to access the internet via 192.168.0.1
to me this seems complex and I hope that someone can help
Thank you very much
Animato