Hey,
Somethings you should consider adding/doing.
Add a short description, or a slogan what exactly your site about.
Maybe "Linking you to your favorite casino sites".
It's just not too clear without, somepeople could mistake it as a comparison or casino review site etc.
It seems abit too dark to me, not much colour, maybe add some images that symbolise a casino, dice, cards, something along those lines.
Obviously, adding these in a suitable place.
Try to put the whole site in a table, container, add some border, so it's more "together", as the content and header look kind of lost.
Make sure they are the same width, or near enough.
Also, i realise i said, add something to symbolises a casino, and i'm aware you have dollar signs in your header, they just didn't "standout" enough...
Try something more powerful.
Hope it helps.
Adrian