You have a 140 right? What are the tank dimensions again? At any rate, that light is what most reefers would call "under-powered" for a 140... you may keep some nice mushrooms and softies, LPS... but with a tank depth of more than 20" or so you will have a lack of penetration (and nobody wants that).
And in a while the upgrade bug will bite anyways, you just wait...
Thing is, you have a pretty big tank and will need (I think) some serious lighting to do it up right. Mind you, I got by with PC lighting for a couple years OK... 20" tank depth though, with a sandbed.
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Alan
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