The odyssea is the cheapest t5ho fixture on the market, its more than worth the 99 dollar or 85 with the coupon code. It will be certainly enough light for your tank.
My wife was also, its so expensive, but then you show her the real prices ($200+) and she will say, yes buy this one!! with the shop light, you will prob have a low light, with the t5ho you will have high light for the same price... I think with 3 bulbs on you will prob have med light (am I correct Hoppy?) Go for the t5ho, you will even save money on electricity! just my $.02