dynamik wrote: » I think you mean 290/291. 292 was an upgrade from the 2000 MCSE and is no longer offered. Since you did Vista instead of XP, 290 will still be a lot of new material. 620 didn't get into a lot of things like NTFS/share permissions, performance monitoring, etc. that 270 did. Even so, it shouldn't be too bad. 291 is going to have an enormous amount of new information, so just take it slow and try not to get overwhelmed. You might figure 2-3 months for 290 and 3-4 for 291. It really depends on what you know and how hard you're willing to work though.