130w would be enough for you to keep most LPS, softies, mushrooms, and zoos.
You won't really be able to keep SPS, and I think clams and anemones are a bad idea until you're tank has been up for at least a year for the tank to mature, and for you get the experience necessary to keep these fragile animals.
65w would be enough for you to keep some softies and mushrooms and maybe some zoos near the top, but I'd skip it and go with at least the 130w.
If you watch the boards for used MH setups you might be able to pick one up that would allow you to keep a wider range of livestock
B