Another option is for your company to purchase the Exam Vouchers. These are usually good for 1 year from the date of purchase - which means they must be registered within this time.
After they have been registered, you then have an additional year in which to write the actual exams. You can't need anymore time than that!! As for how much time between the exams - it really depends on your experience in the different areas covered.
If you hate reading through the books - have you tried using the CBTs/TBTs? I find they are a much quicker & more interesting way to get the necessary material down - and they are written around the OCP exam objectives!
A stupid question perhaps...
I just discovered this site and I was happy to bookmark it.
I am thinking about eventualy doing the OCP DBA exams myself, and I have a question: CBTs/TBTs. What is that?