I want to Run

Start the c25k program. I started it and I'm on day 2, and it's fabulous. If you have a smart phone, get the app... it really helps. (Set it to the woman's voice.. she's a bit more motivating )
And I don't think you're too overweight to run. But perhaps start off with jogging.. and if you're sore at all in your joints after a run then ice/heat them (such as your knees or ankles).
The biggest thing with anyone is to start off slow. Push yourself so you still feel like you're getting a workout, but not that it's hurting in a bad way.

I really think the c25k program would be best to help you get going, it's very good for starting off slow.

Www.RunInjuryFree.com
"training"
"half marathon"
In the paragraph there is a link to "Conditioning"
First 8 weeks do "conditioning" walking only
Second 8 weeks you can add in the Jog segments
And then
If you are progressing you can move on to the
"training --"5K" plan
On the same site.
Use your own ccomfort level as your guide
Do not do Too Much Too Soon
:-)
The Gymboss is great and worth the money

Www.RunInjuryFree.com

:-)

I love C25K! I invite you to check out my recent post about it, along with people's comments/experiences: http://www.myfitnesspal.com/topics/show/245276-my-c25k-experience-so-far . Another great recent post with wonderful comments: http://www.myfitnesspal.com/topics/show/245243-training-for-c25k-need-more-supoprt

My experience with C25K (so far):

1) Do not let your weight keep you from running! I'm a big boy -- 260 lbs, and I finished my first 5K race (39:39) a week ago, and am running my 2nd in a week (aiming for 36 min). C25K has been wonderful. It allows you to ease into running, and you can always do it at your own pace.

2) Schedule a race right now. Find one that's 9 weeks out. Even if you aren't done with the program by then, run/walk it anyway. My first race was so much fun. Running with other people was a great motivator.

3) Do not run on consecutive days. As good as you might feel, as confident as you may become, let your legs rest. Not resting can lead to fatigue, injury and decreased performance. Trust me.

4) Take it at your own pace. Don't worry about speed -- just build up your endurance. Speed will come later. If you aren't ready for the next week's run, repeat the current week. No big deal. At the same time, though...

5) Don't psyche yourself out when the big runs come. You can do it! I stopped looking at the schedule and just downloaded the podcasts. I wouldn't know what was coming each day until I turned it on and the gal told me. Loved it that way.

6) I loved the NHS Choices podcasts (http://www.nhs.uk/Tools/Pages/couch-5K-running-plan.aspx) on my mp3 player. The gal has a great British accent -- and that would be sufficient for me to enjoy listening -- but she also provides tips and encouragement, along with the walk/run cues.

7) Run outside. Even in the rain. It's so much better than running on a treadmill. Enjoy the sounds and sights.

I never would have considered myself a runner, but I do now (slow as I may be). It's been fantastic, and a huge confidence boost.

I started running @ 215 lbs.

C25K is how I started. Start with running twice a week and increase to 3 times a week but not every day. Ice your joints when you're done. And might I suggest Body Glide (a lubricant for fatty's) you'll thank me later :blushing:

HAVE FUN! I'm currently out with a groin injury but I adore running and credit it with 50 lbs of weight loss.

I don't see why it would be unreasonable to start now! You CAN become a runner! There was an article in this months Runners World about the "heavier" runner. Just take it slow, listen to your body, and invest in a really good pair of shoes (a must for any runner). GOOD LUCK to you! Wishing you the best and hundreds of sweaty miles!

I also did the c25k program. Check out Jeff Galloway's books. He believes in a run walk program. The idea is that the walk break helps you to run faster and longer. It also helps prevent injury.

Definitely get fitted for a pair of shoes at a running store.

C25K is a great way to get started, I started in January and couldn't get through 8 x 1 min runs, now I am just about to sign up for a 12km race in August!

A few things to think about:
- it might be worth checking with your doctor to make sure there is no reason why you can't run, none of us know your medical history so we can't advise if it is a good idea or not.
- get good shoes (fitted for you) and a good bra. If you can't afford them yet, don't run until you can.
- make sure you build in rest days (doesn't mean do no exercise, but do some strength training or walking if you want to do something, just not running every day).
- a combo of walking/running is a great way to get started and to build up your endurance.
- if you get aches and pains, pay attention to them and don't be afraid to rest if you need to give it time for them to settle. Seeing a physio or other professional is worthwhile if you have ongoing pains, and don't be afraid they will tell you to stop running, they might just help you continue.

Enjoy!