Well I would say they are worth $0 but since you are new it shouldn't be too terrible since you don't know much about domain business. I would suggest for you to read what other domainers have wrote for newbs. Just read trough this forum you will find lot of great info..
Also I developed a site http://www.mytopdomain.com it is a free resource you will learn a thing or two on that site lot of resources so visit other sites it will help you alot.
well that is all from me
welcome once again and good luck
Also I developed a site http://www.mytopdomain.com it is a free resource you will learn a thing or two on that site lot of resources so visit other sites it will help you alot.
just put some text on it with some good keywords see what happens... for all you know on next update you might rank high.. the domain itself will not sell for much