Using True Type Fonts isn't really the best idea. There will always be people who have
anti-aliasing turned on, which will make the letters grow fat (yeah, fat in the meaning of
really obese xD) and turn almost unreadable. Use pixel fonts instead, as they will always
look the way you want them to look (*.fon). ^^

PS: Google for "Fony". It's a free pixel font editor I made my game font with.