Check out my PAR38 LED bulbs on my website
http://www.coralcompulsion.com
They are pretty reasonably priced, and will certainly support a reef tank later on. You can also start with pretty much any type of fixture you want since they are standard screw in bulbs. Or, I offer a $10 discount on any bulb and my custom lamp clamp fixture combo on my site.
Look through the forums for Trackfast's led upgrade. He put 4 of my 27w bulbs over his 55g hung from cheap ikea hanging fixtures, and it looked great. That should give you an idea of how it would look.
If you have any questions, let me know.
Thanks.