Lots of people have been wondering how they can easily switch between Maya and Blender, without having to worry a whole lot about different hot-keys and such. Well there are two easy solutions that I have come up with.
Blender now has a Maya key-map preset built right in! No need to go through the long lists of key-maps and change everything so that it is to your liking, instead right on the splash screen is a nice little drop down menu with presets (under the name Interaction Presets). Right now there are only two, Maya and Blender, however in the future it is possible that other 3D programs will have their own "interaction" presets built into Blender. Unfortunately for the die-hard Maya user, not every singe hot-key has been ported (Blender's features aren't all the same as Maya's - otherwise there would be no point in having it.), still it is supposed to be very helpful.
This change has been in Blender's Trunk since r31638 at least, so building the latest version of Blender will guarantee that you have the feature, however even if you are not a programmer, you can still have access to it! Download a fairly recent version of Blender for Windows (Complete with Installer!) from Letwory Interactive at this page, and enjoy!
Blender Guru just released the Free Blender 2.5 Cheat Sheet, a list of all the keyboard shortcuts in Blender, grouped by task (eg. Modelling, Sculpting, Fly Mode, etc.). Now you won't have to worry about knowing the shortcuts, just look them up!
Hope these ideas help you out with your Blender fun (and work)!