You should go with low light plants, they are beginner plants and near impossible to die. They are: Anacharis, Java fern, Java Moss, Anubias, and Duck weed. There are more than what I listed but these 4 look good together as well as have high survive-ability. This Thread
has more information about plants and more plants to choose from.
Plants of these types require low-high light so if you ever decide that you want to get a plant that is "high" light you will have to invest in some 6500k bulbs for approximately 1-3 watts per gallon (2watts works great for me though if you have snails you can get 3 for algae to grow for them)