Yes, it is buckets of fun. The only thing I can recommend, and I do it with caution, is Schiller's "A gambit repertoire for black". Check the lines yourself with fritz or something before you play them, but other wise it is great fun.
I've had good results with the Icelandic Gambit in blitz. If you don't buy any Eric Schiller books on principle, you might want to look into "An Opening Repertoire for the Attacking Player (2nd ed.)" by GM Keene and IM Levy.