Welcome to the forum, hopefully you'll find it friendly and pretty useful!!
To start with I'd say get yourself down to a proper sports shop (a proper one that is... give JJB & Sports World a miss ) and ask them to assess your running style and recommend some shoes to you. You'd be surprised how many people end up injured through starting out running without using the proper kind of shoes! It might be an idea as well to make sure you've got some clothes your comfortable running in.
Being both new to the forum, and new (I assume from what you've said...) to running, it'd be good to hear what sort of runs you're enjoying at the moment, how long you've been at it for, and also if you've got any running goals - whether it's to run a 'race for life' or to finish a marathon, or if you just want to burn a few calories so you can feel less guilty having excessive amounts of Mince pies and Mulled Wine over xmas! Let us know and I'm sure everyone will be more than happy to give whatever advice they can :d