lighting system help`

if it'll only ever be a fish only tank, then just get anything that fits your budget, (I'd probably settle for t5's.. They're not that pricy, don't generate too much heat and electricity)..

Just make sure the lights you get have a high Kelvin. I'd get 20000K..

(Lower K is better grown but yellower light... Higher K is a whiter/blueish light but comprimises coral growth. )

stick to flourescents or t5's and simply use 20k bulbs.