Me and the other guy in the band took vocal lessons at night school after realising that we couldn't explain why some nights we were vocally terrible (although lack of talent might be the explanation).
Seriously, well done, you'll find it really helpful. I'd recommend vocal training to everyone. Our teacher was an operatic tenor so some of the techniques were not really appropriate for "pop" covers, but we learnt so much about posture, breath control, how to control the brightness of your sound by the shape and configuration of the face. You'll find you don't get vocally fatigued as much as well.
Enjoy.
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John Allcock