Hey man, looking sick so far!

Ok, so, man, you're going to have a bit of work, but if you don't feel intimidated by it then you really need to check this out:

http://www.tikiroom.com/tikicentral/bb/viewtopic.php?topic=48174&forum=18

It's a bartop with a river running through it... you can place leds to change the mood according to the lighting you have or simply to make it fit your own bartop (blue seems to be the right color).

Alternatively, I see some posters on the wall that match a Steampunk setting, and the metal does too. so you could try this technique:

Embedding diving tools on the bar top and passing some Jewish Bitumen and varnish on top to give it that look on the pic.

Cheers Man!