Those of you who are fans of Somethin*Positive will probably already know this but for those of you who aren't...
Randy does a ten minute or so YouTube video where he discusses the crossovers he has done over the years between Something*Positive and a host of other comics.
This is interesting because he describes some of the pitfalls and the writing process he undertook in each instance.
Watch it here. (http://www.youtube.com/watch?v=zIO2252q8N4&feature=player_embedded)