Welcome to the forums! You'll find yourself addicted in NO time!
My vote is for drosera (sundew). A d. capensis or d. spatulata...both pretty easy to grow and good terrarium plants. Flytraps don't need to be in a terrarium...you can grow them on a sunny windowsill. A nepenthes ventricosa is good too...mine has grown like a weed.
Exotic Gardens, that runs this forum, is a great source of healthy plants.
Come back and visit often and you'll learn lots about growing carnivorous plants and you will make some good friends too!