lucy24 - 1:16 am on Aug 10, 2011 (gmt 0)

Sorry to do this, but when you say "memory" do you mean "bandwidth"? Any extra memory load should be happening at the user's end, where the browser is balancing five font files on top of everything else the site has thrown at it.

Are you using the complete font files with the full repertoire (here I'm particularly apprehensive about the "deja" pair, if that means DejaVu), or edited versions specific to your site?