Update - 4 March, 2010:

Removed the bit of code hiding and enlarging the inset map and other parts that don't work anymore.
Pretty much it just enlarges the map now.

Be sure to disable the style long enough to check out and activate the cool new Google Maps features
in Google Labs; such as drag and drop & smart zoom!

-End Update

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Greasemonkey Users take note!
I recommend running "Google Maps Max Updated!" with Stylish. Some Greasemonkey users (as seen in a couple of the comments) may need to resize their browser windows after loading Google Maps to eliminate a bit of undesirable white space that initially shows up on the bottom of the page. Once resized, everything works fine, but this is, admittedly, an annoyance. This does not occur when using the CSS. I definitely recommend loading "Google Maps Max Updated!" as a style, with the stylish extension. If y