I only have my MCSE for nt4 as the win2k test I believe are just now available. Win2k should be a bit harder as there is much more to learn than nt4. It really depends on how familiar you are with the operating system. The thing about MS publications, well at least it was true with NT4 was they gave out evaulation copies of the software you needed. Also they gave great exercises which gave you alot of on hand training. I would pace myself a test every 2 weeks, or whenever you're confident you will pass the exam. Just make sure you take alot of practice exams, you'll know when you feel you're ready to take the exam. A great tip is make a cheat sheet, with everything you have trouble remembering. Study that sheet the morning before the exam and once you enter the room, before you take the exam write down as much as you can remember on that cheat sheet onto the scrap paper they provide for you. Also READ the questions carefully, can't stress how important that is because they really try to TRICK you.
Good luck