I'm stripey/spooky's DP and someone wanted advice about running??
first thing, decide what you want to achieve and how much time you have to give to it (not much, probably, and definitely less than you think). Do you want to be fit, lose weight, run races, meet people, run on your own, have some me time (I always run alone)? Be realistic. If you think running will make you lose weight, it will (I had a really good 18 month period of running A LOT and lost the best part of a stone, I'd say), but you have to run a lot. A few minutes here and there won't, not least because you will feel so virtuous that you think that stuffing your face a small snack is justified.
Start slow and easy - you should be able to hold a conversation easily (tho you probably shouldn't go about the place muttering to your self ). If you feel close to collapse out of puff walk, but don't stop. 3 x 30 mins per week is good to start, gradually build up so that you can run 30 mins continuously, then add time/distance gradually
Remember that you will get aerobically fit faster than your muscles and bones will adapt - if you go too fast too soon, or run too much too quickly you will hurt something and never want to run again - achilles is my - ahem - achilles heel. Buy a proper pair of running shoes from a proper running shop - they should make you run on a treadmill and assess your gait. This will cost you some money, but save a lot of pain, literally. Run on grass/dirt paths where possible - concrete and (especially) sand are very hard on the soft tissues.
find nice places to run - enjoy being outside - and don't obsess about distance/time - you can get into that if you want once you are fit.. There's lots of good online sites/support and the couch to 5k program from Cool Running.com is a good place to start. I think there are some running threads on MN. Also with the dark nights/morning be mindful of safety - festoon yourself with ugly fluorescent tops and twinkly lights. Don't run off road in the dark.
that's probably quite enough - I love it, I have missed it (just couldn't hack it on minimal sleep, f/t job, not fair to Stripey and Stripelet for me to come home and say 'hi', oh, and btw I'm off for a run now) and I have a good 10lb of blubber to run off before Christmas...good luck! And here endeth the first lesson.