I'd definitely recommend going to stores and trying the treadmills (after the research). I have a knee problem and it was imperitive for me to find a treadmill that would be gentle for my knee after pounding day in and out. I walked and ran on the treadmills in the store and watched how my knee felt. And I did try the Sole F85 and I didn't like it as much. But everyone's body is different.
I found the
treadmill doctor and
Runner's world sites
very informative & helpful without any sales pitch. They have reviews and detailed information on almost all brands. Not to mention RW has forums with people discussing what they like or don't like about certain models. After, I decided on my budget and narrowed my choices (after reading) of the models I wanted to try we went store to store trying them out. Some of the stores I went to - Dicks Sporting goods, Fitness Resource, Sears, another specialty store - sorry can't remember the name

. I look at my treadmill as my investment as it is for my health. It was worth all that research as I love my treadmill. I spent a lot on it but it was worth every penny of it. I have a
Landice L7 Pro Sports Trainer. All parts and motor is lifetime warranty (part warranty etc is another thing you have to look for when buying a treadmill). I'd suggest decide on a budget and then go thru the above sites for detailed information. Don't fall for the sales pitch of the sales guy at the store. It is you and your body that should be able to tell you which make/model is better for you

.
BTW I did used to own a cheap $180 treadmill. That was my initial investment as I wasn't sure I'd stick with it. But, once, I started working out regularly and knew this is for life I went ahead and got me a better one. As the old one was definitely not meant for doing a whole lot.
Hope this helps
