Hey welcome to the forum
It's great that you want to take up running, it's an extremely effective way of getting fit if you stick with it.
Advice for shoes - you deinfitely want to get yourself to a specialist running shop where they'll be able to see what type of shoe you need, ie whether you need more cushioning, if you have neutral gait or not... blah blah. If you tell us approx where you live there's probably someone close by that can recommend a good shop! I've found that shops of the sweat shop chain are very good!
Anyway, some misc advice - get out there and enjoy yourself, it's what counts the most

Good luck!
