Take the 70-299 and then the 70-298. I thought that order was the better choice. 70-298 is basically the 70-299 material, just a strange format.
I would use the MS Press book and Transcender for 70-299. I would also get the 70-298 MS Press book (worthless) and use the CD that comes with the 70-298 book. Both the 70-299 and 70-298 books have accompanying CD's that have some very good questions with them. The tests with the CD's are VERY hard but they have good study questions.
Preplogic was good for 70-299, but it was not good for 70-298.
Basically the 70-298 is the same material, and I would recommend taking the 70-298 VERY soon after 70-299. I took it 2 weeks later, but I could have done it within a week, and I know some people do it the same day.
Good luck.
