130W of PC is definately not enough for anemones. You might be able to keep a Bubble Tip Anemone under 300+ watts of PC, but the general consensus among hobbiests is that anemones require metal halide lighting to survive.
$179 is an alright price for the ballast mentioned in your first post, as some LFSes I've encountered have tried selling them for well north of $200. RAYRAYPICO mentioned that you would only be getting a ballast for that price. You would still need to purchase wiring, endcaps, and most importantly, bulbs. To put that all over your 72g, you would easily need to spend $300 or more. With that kind of money, you might as well take a look at MH, as you could find dual 175W or even dual 250W retrofit kits near the $300 mark.