Yeah that would be better and you'd see more vibrant fish colors.
Depending on your wallet ( purse ) you might want to consider either the twin tube hood and bulbs ( 80 watts total )as you mentioned, or for around $120.00 you can get a 48" 110 watt All-Glass power compact, or even better - for about $150.00 bucks go with Custom Sealife 48" SmartLight 110 watt 50% daylight and 50% actinic strip light fixture.
I have the CSL 36" 96 watt 50/50 SmartLight on my 30 long tank, and am very pleased with the way the fish look. Also allows me to keep some lower light corals as well.
Just a thought - lighting can be a tough decision for any tank.
Brian