Check newly installed HDD without a monitor? With laptop?

I disconnected a desktop tower to install more hard drives in it. It had been connected to monitor, keyboard, mouse, and router. Now I only have the keyboard and mouse, but want to configure the new hard drives. Is there any way I can do this by attaching a laptop? The tower still has openSUSE 11.1 as the primary operating system, running sshd and smbd. But without the router providing dynamic DHCP, the network that those services would expect is missing.

Any ideas?