LED's

[Silverfish]

I have heard talk of using LED's to light a reef tank, but that it is just to expensive. Does anybody know how expensive it could be? Say you wanted to replace a 250 watt MH, even if it cost $2000 the LED lamps last for many years compared to MH, and are also more efficient to run.

I really hope this is something that is in the future of this hobby. Imagine a reef lighting system that was completely dimmable, had lamps that last for 10 years or more, and cost much less to operate every month. :D