Originally Posted by gonX
I think what you're meaning is called a "static" IP-Address, which lets you choose an excact IP for your computer, you probably just need to setup your router for static IPs (Giving the IP you assigned for.)
Not necessary. Only if you want a "static lease" which usually is only useful if you want to organize your DHCP workstations.
Yes, do what K suggested, however, you must make sure its in a range past the dhcp leasing range. The best way to do this is either go with high numbers (192.168.1.248 - 192.168.1.254) or use an extra octet for your subnet (192.168.2.2 - 192.168.2.8). However, if you do this, you will need to change the subnet mask on both the router and workstations to 255.255.254.0 the screenshots above are wrong.