I have had a lot of problems with tight calves and general aches and pains from running, two solutions (both involve more time that you might not have to invest but hey ho)
- Yoga,I started doing Ashtanga yoga which is pretty hard work but great for introducing stretching but also helps all round strength a lot as well
- Swimming, really helps to loosen off the muscles, before work is good if you can find the time
Both of the above I basically got to the point of having to do otherwise I'm sure I couldn't run now/would be crippled later in life. Both I was rubbish at/found very hard work/boring and first but now I enjoy both, stick with it.
I used run 5 miles and be unable to do any more running at all for over a week due to tight calves. Did a 16miles trail run last weekend and had no stiffness in calves the day after - results dont lie!