Hello,
First of all I am a new comer to saltwater aquariums, although I have kept freshwater for around 3 years now. I want to start a little smaller and less expensive so I am going to be purchasing a nano reef. I am stuck between these options:

Red Sea MAX 34 Gallon
(Seems a little expensive IMO)

Oceanic 29g BioCube HQI Aquarium System
Nano Aquarium Systems & Aquarium Kit: Oceanic 29 gallon BioCube HQI Aquarium System

(looks nice, but the filter doesn't seem to be as powerful as the nano cubes)

Nano Cube, CF-QUAD (what is the difference between this one and the regular nano cubes?)
]Nano Cube Reef Aquarium Kits: JBJ Lighting Nano Cube 28-gallon CF-QUAD\

28 Gallon Nano Cube LED Intermediate Series

Nano Aquarium Systems & Aquarium Kit: JBJ 28 Gallon Nano Cube LED Intermediate Series Aquarium(looks nice)

In your opinion which is best, what are your reasons? In other words which one do you suggest for a beginner saltwater aquarist?

Please state your reasons! Thank you :)