Chrome users can enjoy it with Personalized Web, use the following as the match URL:
There is a similar extension for Firefox and a built in tool for Opera users.
This released under the WTFPL license. I'm using it myself, so I'll amend it as I see new defects.
I applied the pixel font for pretty much everything except text. Only sizes of 8px, 16px and 24px are used for it, however. The bonus portion removes traces of Tahoma, bringing the design down to two fonts: Tempesta and Arial.
(new) Affect the new user dropdown. Add subtle, delicious
bling glow. Change suggested edits counter to blue.
Screenshots: homepage - question page - editing questions - profile page - recent activity - revisions
Here's the smallest of the full page screenshots: