not sure if our newcomers have noticed, but in addition to all the neat stuff you can post on your profile page here, you can also change the page theme for the forums

if you look at the bottom left of the main page http://neurotalk.psychcentral.com/index.php
you will see a small drop down field that will say "Default Style"

click on the arrow and you can choose a new theme
I like Tulip and Spring best