HI. What are the modules I would need if I wanted to do some basic operations regarding sending files to other computers on my own network? Just being able to copy files to another computer is sufficient. Does such an operation require a lot of expertise in programming and networking or can a newbie like me manage it without too much difficulty?

Try having a look at some socket tutorials. They are great for network tutorials

if you are on unix (or download tar and netcat) you can do it with netcat:
http://www.catonmat.net/blog/unix-utilities-netcat/

# On computer A with IP 192.168.1.10
$ tar -cf - /data | nc -l -p 6666

# On computer B
$ nc 192.168.1.10 6666 | tar -xf -

You can use python's webserver:

python -m SimpleHTTPServer

That starts a httpserver on port 8000.