Hey ablaye,
Welcome to the site! Great news you're thinking about coming over to the dark side...definitely with the price of petrol nowdays, it's a sensible idea.
I'm myself looking at getting a UZ125 scooter solely for commuting to and from work, which will pay for itself within months, on my savings on petrol.
Currently spending say $240 p/m on petrol...this should go down to $50-60 I'd guess. Definitely worth it!