I'm one of the biggest OPK bashers here, but I would encourage you to go for it if that's what seems like it fits your style best. Remember that the sample of women that you get in a TTC forum is biased towards those who have been trying longer because those who get pregnant on the first try leave while the ones who don't spend 2, 3, or 20 times more time here and tend to get more complicated.... and tend to think that others need to get more complicated as well.
The truth is that most women do not need to get that complicated in order to TTC, and you can find what is right for you. With random, regular intercourse, you've got about a 25% chance of getting pregnant each month. Anything you do to assist you in learning more about your fertility (including OPK's) can assist you in raising that number. In most cases, sperm can live a few days, and an egg can live up to a day, so if you are BDing every few days, chances are, you would end up pregnant pretty quickly regardless of what charting you are doing. If you want to use OPK's to give you an idea of when to shoot for, go for it. If you're obsessive-compulsive about fertility (like me) there's several things that you can chart to help you know when your body is getting ready to ovulate and to let you know when you do actually ovulate and how healthy your cycle is and when your due date is, etc.