Hi
Just like to say that I passed the 290 today, with a score of 957. The test was very much alot easier than any test engine and the topics are not that in-deepth, the sims where very simple, not masses of config etc.
I'm not sure if I was luckly to get that high but just wanted to say from reading some of the threads that I found the following useful for learning, incase someone is in my boat where I constantly was worried I knew jack about it all.
As everyone seems to mention it transcender is by far the best test engine to use, I have also used mesaure up and readness reveiw suite thing. Only used these a few weeks before the exam to view any trouble areas.
The transcender study guide is also good as it seems to patch in some areas that the Microsoft Press 290 book doesn't cover. I found I was reading my old 270 book I never got into as 290 only skimmed over a few areas for certain things. But I guess if you have done 270 you won;t want to go over it again.
And technet was a big help aswell, maybe it goes a little to far in detail, as I can't remember the exam being the explicit but I it explains whatever you need to know, bar some good info on performance counter thresholds.
I'll stop keeping on

but thought this maybe useful to someone if they are unsure and nervous about the exam. Personally I think I probably done too much I would have been happy with any passing score, but I wanted to cover all bases.
Just need to pick a new exam now