Wow, here is a list of things you are going to need to do.
1. internet router with pipe to the internet
2. Firewall protection
3. Some sort of Fast Ethernet Switch to connect devices to
4. If you are going to have email, you will need to hang your email/news server off the DMZ, better known as the public zone
5. Do you want to control who has access to the inet, then i would recommend you invest in Bordermanager for proxy and caching services
6. Since you are to have access to the internet, you need to decide wether or not to use public or private IP addressing, I recommend private and then NAT everything through the router
7. Netware 5.1 is a good o/s to use, with the NT workstations, just make sure you have the latest and greatest Novell client installed
8. Do some research on the inet config, your probably going to want a fractional t1 at first for 25 users, a 256K pipe going out should be sufficient enough to support everone.
9. I would invest in fast ethernet 10/100 switches, lets say one 24 port switch for the DMZ and one 48 port switch for the LAN equipment.
11. The router going to the internet will need a T1 card going out most likely and Fast ethernet port on the other side, a small cisco 2600 router will suffice in this manner.
12. THe firewall, hmm, you may want to invest in something small, unless money is no object then I would recommend checkpoint firewall, you will have to hand the private lan off one port, the dmz off another, and a third port to connect to the caching server or fast ethernet port of the router
This will take some work and planning on your part, but since this network is small, it should be simple and easy to build and put together.
Make sure you use IP and do away with IPX unless you are going to have applications that require IPX.
Hope this helps
Mark C. Greenwood, CNE
m_jgreenwood@yahoo.com
CNE 4.11 and CNE 5 certified. BS Degree in MIS. Working in the industry for 8 years.
I work with NT servers, NDS for NT as well.