Guys, great to see some new blood erm I mean fresh faces 
Just a couple of tips that may be useful ...
Firstly and mainly (and this is the one that gets everyone .... Speed ... don't try and run everything eyeballs out ... take it at a slow comfortable pace in order to get your body used to running, you can build on your speed once you have your endurance up. (and yes it will be hard to control ... I know I still struggle with trying to run slower!).
Get a plan, and a goal ... if you haven't got a plan get one, there are loads out there for every occasion ... it doesn't mean you have to stick to it letter by letter, but it works wonders for adding a bit of structure to your running as opposed to just going out and 'running a bit'.
Rest days are also another thing that are so oftenly overlooked when you first start (again .. guilty as charged!!) ... they are considered by some to be even more important than the days you actuall do go out for a run, as that is when your body rebuilds and strengthens ready for the next time. It will be soooo tempting to go out and run everyday when things start coming together as the feeling is fantastic, but be warned ... that way lies injury ..
And last, but by no means least ... enjoy it !!!