New Aquarium advice

[msmith619]

I am back into salt water after a several year hiatus. Looking for input and advice.
I bought a used 75 gallon reef-ready aquarium that uses an in-tank overflow to a 25 gallon wet/dry filter underneath. This is my first aquarium with a sump and so here are my questions:
1. Is a wet/dry filter a good choice or, should I turn it into a refugarium?
2. Lighting- I plan to keep some bubbletip anemones and soft corals. I am looking at the following light for $120. Is it adequate? at this price am I buying a problem fixture, should I go with T5's instead? I need something affordable.

Fish , AQUARIUM LIGHT 48" REEF ODYSSEA 260WT POWER
"NEW FOR 2009''
NOW WITH 8-LEDS (4-DUALS)
MOST CURRENT MODEL AVAILABLE
UNITS ALSO HAVE 3 CORDS SO YOU CAN PUT A TIMER ON FOR DAY AND NIGHT REEFS!
Modern sleek design, black as in picture.
Approx Dimensions are: @ 48" long, 8" wide, 2 3/4" tall very sleek and compact. Fits standard pin bulb for easy replacements. We stock those too.
These units have two cooling fans on top for optimal performance, mounting legs, 8-Blue Moon LED lights (4 duals) and 3 power cords for timer use.
Comes with 4 - 65 Watt bulbs - (2) 12,000K daylight and (2) 03 true actinic. We include all bulbs for free!
1-pair of flippable light legs to mount the light directly over your existing aquarium.
Bluemoon LED lights to simulate reef conditions, a must!
Light bulbs covered with acrylic shield.
Reflectors for more refraction
3 on and off switches- 1 for daylights, 1 for actinics, and 1 for moonlights.

3. How important is a protien skimmer? I never had one before and never had problems.
4. I found some very nice looking ceramic rock on another posting here on MAAST- http://www.aquariumspecialty.com/cat....php?cPath=146 I love the look but am wondering how to get the tank seeded with colorfull coraline algie if I only start with ceramic rock and live sand. I guess I could buy a couple small pieces of colorfull live rock to "seed" the tank.
5. Salt brands. Many years ago I used Instant Ocean. Just before I got out of salt water, about 8 years ago, I tried and liked Red Sea salt. Is one brand better for soft corals and anemones?
6. Test kits. I used to use just a hydrometer and never had problems, with twice monthly water changes, growing anemones and soft corals before. Should I buy a test kit for salinity, calcium levels, etc?

Any input is greatly appreciated.