radioguy

I just started running 2 weeks ago. I was bored and didn't have anything else to do, so I thought some exercise would be good. Never before in my life have I run. Too me, running seemed pointless, now I enjoy it. Currently, I run 1/4 mile and then walk 1/8, repeating. I end up running about 2 miles and walking 1 mile. The first mile is easy, but the second one sucks big time. It is hard. It takes me approximately 40-43 minutes to complete this trek. My question is: How long do I continue this routine before trying to run further and walk less? I know I could just try running 1/2 mile or something but I don't want to try that and get discouraged because I can't do it and stop running. I'm very bad at dealing with failure. Is this an appropriate running program to eventually be able to run nonstop for miles? I'm just looking for suggestions and help because I know nothing about running. Also, have ya'll seen those new nike running shoes, called the Nike Free? They are supposed to match the contours of your barefoot or something like that. I currently have some cheap new balance and I don't like them at all. What shoes would ya'll recommend? Thanks for the help.