Either way would be just fine, it boils down to preference. As stated earlier you could get away with doing a single pendent with a really good reflector, 250 should be just fine at that depth. Or you could even look into the new Tek elite series for that price. Either way you go, you could always add led supplements later.
I started with 2x250w halides and 4x54w T5 fixture, and was not happy with the engery usage. I then upgraded to an 8x54w powermodule and love the ability to change the look by just switching some bulbs around. I just recently added a DIY led supplement of 24 x 3w leds and it is mind blowing. Even with my powermodule fully powered up I can still see the leds. So I personally would recommend leds for supplement.
I would say either way you go is fine, but I would recomment adding leds for supplement.
Good luck