Help Tutorial On Oracle

hello guys

please i need some guide.
i intend to study and develop myself in oracle, please has anyone started any such tutorial yet and if no please could any one direct me to one on the web?

is this book "oracle databae 10g complete reference" good for beginners?

moreover, i have an interest in also getting a hp laptop, please is hp p4 reliable in terms of ease of use, battery life and does hp support really good? moreover any better advice on getting a good laptop?