Right after our son was born, my husband got me (my first!) very nice camera. It is a Sony DSLR-A390L. I have never bought a new lens for the camera, and thought maybe this would be the year I would ask for one for Christmas. But, I knew that if I were already feeling overwhelmed trying to research and decide which lens I wanted, there was no way my husband was going to know what to buy. So, I thought I would ask you girls - what is your favorite go-to lens? I am not looking to spend a fortune on a new lens, but it would be nice (especially with a trip planned in January to Walt Disney World to celebrate our son's fourth birthday) to have a great, versatile lens that has a little bit more "umph" than what I presently have. Currently, the lens I have on my camera is a 3.5-5.6/18-55 SAM. Also, if you guys can think of any great website that might help breakdown and explain all the different lens types and options there are, I would love to know about them to help narrow my research. Finally, if you have any tips where to purchase lenses from that would also be appreciated as there are no specialty photography stores in my area, so my purchase will have to be made online. Thanks for your suggestions!