Sorry for the all the confusion in this thread Antonio... I believe the lines that you are talking about are just for measuring cleat placement.


This link looks like a good general explanation of pedal options
http://bicycleworldandfitness.com/bu...dals-pg189.htm

Cycling shoes and cleats are quite comfortable, although a bit awkward at first. Don't be disheartened if you tip over once or twice; it happens to most of us

A recommendation that I would pass on from my bike shop is to get a pedal called speedplays. They are double sided, meaning it is much easier to clip into. Most other pedals (shimano, look) are single sided and take a bit more concentration to clip into. Nether type is better than the other, its all up to your preference.

Some other advice I'll throw in is to look into a pair or two of cycling socks. They tend to be thinner and more comfortable on the bike than regular or running socks. However, if you're trying to save $$ cycling socks are not absolutely necessary.

I have a fairly cheap shoe/pedal set up.
These are my pedals - http://www.probikekit.com/display.php?code=NP07533
These are my shoes - http://www.probikekit.com/display.php?code=F0076
--> They took a bit to get used to (comfort) but now they feel just fine.

One last thing to consider is that you may want to look into a mountain bike shoe/pedal set up. MTB shoes and the cleats that go on them are much easier to walk in. Personally I'd stick with the road set up out of the vanity of being a roadie