slojmn1,
I'm running two 400w 20k Radiums on PFO HQI ballasts, and two 110w VHO actinics over my new 120 Oceanic. I really love the color of this setup, and like the way the corals are coloring up under this light.
Are you running a chiller? An extra 500w MH is going to ad a good amount of...
just got this little guy from Aquarium Concepts also.
Bad pic though...had to use the flash on the camera because just the actinics were on in the tank.
I'd recommend the MyReef M-1 or M-2 skimmer. Great skimmer, great valuue, great customer service. I have his M-2 and LOVE it.
check out this to see the skimmer in action.
http://www.reefland.com/cgi-bin/forum/showthread.php?s=730ece341ab987168430f4d9d6b57e31&threadid=4036
Andy is a great guy. Very helpful, great servive...really can't go wrong with him. I have his DIY skimmer and it extremely well made. I highly recommend him