I think the best thing to do this is to get OCP books of oracle press, read them, download exam simulation and test youself for exams and when you fell confident, go for exams. Oracle corp. is giving 40% discount on OCP exams if ucertify is giving you 70% discount, its really good and money saving, then go a head. I think don't go for any formal training, just get oracle press ocp course material and start studying it, as it is sufficent to qualify exams. Is all that what I think? So keep a head dude!