Well, I did it. I bought a Polar F6 heart rate monitor and I LOVE it!! What's great is that the treadmill picks up the signal from the chest belt so I can view percentage on the watch and bpm on the treadmill. I used it on a walk at a local nature area and it felt so great to see what my body was doing while I was exercising. I was able to adjust my speed in accordance with my HR; it was terrific!
When I first started looking at ways to track my heart rate I didn't want to get something that used a chest belt. I didn't want to have to deal with extra equipment so I got a watch with a touch pad. It works okay, but the watch itself is kind of sketchy and will sometimes reboot for no reason. After having used the HR monitor on the treadmill I see why the chest belt is invaluable.
Tomorrow I'm planning on a walk using the HR limits on the treadmill and maybe going for a walk with W if the weather is nice.

Did the interval workout today. I warmed up for 5 min, then alternated jogging for 1 min and walking for 3 min, 5 times so my total workout was 25 minutes. The HR strap wasn't working today so I wasn't able to monitor my heart rate. I think I just wasn't able to position the strap right on my chest. Part of the problem was my sports br4 being too small. I ordered another one last week that will hopefully fit better. Nursing is fun your b00b$ can't fit into any normal sports equipment! Sorry for the TMI....of course I doubt anybody is reading this. I'm mostly doing it for my own record to keep me motivated.

Huh, it's 4/4 and it's my 4th entry.
I tried something new today; I used the HR strap that came with the treadmill so I could monitor myself visually. It was so much easier than checking my watch every minute or so. I was able to adjust my speed in concert with my HR so I could stay in the 135-150 range. I'm going to have to use the strap next time I workout. I have been thinking about getting a Polar Watch, but I'll hold off for now.