if you're going to work out, I would really suggest going first thing in the morning. It has such a dramatically different effect on your day versus working out at night. I'm not a morning person either but I'll never work out at night again.
What are the benefits? More energy/zest during the day?
From a health perspective too, it's a lot easier to "refuel" your body throughout the day after a morning workout as opposed to at night.
Like Sharkweek said (awesome), the energy it gives you to start your day is amazing. It carries me to lunch with plenty of adrenaline flowing.
I also had difficulty falling asleep when I worked out in the evenings.