Well, in order to justify your name for the site i'd try and think of something that no other arcade has, that way you can say "yeah, we've got this and it makes us leeter (excuse my french) than the rest".
Yes, i agree with Talkvb on using some gradients. Grunge generally isn't the best idea for an arcade design. Even a change of banner and a reformat of the CSS throughout the site would go a long way with this design.
Thanks for the feedback. I'll be putting some new headers up tonight. And what color links do you think would go well with the design? (visited, hover, and such?)