Keyboard shortcuts for setting view angle

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Are there any keyboard shortcuts for quickly switching the camera view to +/- X/Y/Z. There are times when I want to view a model orthogonally from the top down along the Z-axis, and it can literally take minutes of scrolling, and even then it doesn't seem completely possible with the mouse.

Also, is there any way to make a glyph show up indicating the origination of the axis?