Totally agree with os2sam (although his new avatar is kind of creepy
) I have been having the "when GPU mining becomes unprofitable" with a business partner pretty consistently since August of last year, when I got him involved. Although those conversations do continue, with the recent runup in price, GPU mining, at least for me/us, has been more profitable recently than it ever has been. That being said, with difficulty continuing to rise, if the price doesn't keep up, that may change soon. That too has been part of the conversation since August as well though....
YMMV. Good luck.