How about Jeremy Pargo? He was cut by the Cavaliers when their injured guards returned (Irving, Waiters, Gibson), but he had been more than serviceable for as long as he needed to start, with 14,5PPG and 4,4APG. He also had a big game against the Sixers:
http://www.youtube.com/watch?v=x0VMjIcG7SoHe might not be the best floor general, but he's a great ball handler and a very explosive slasher and finisher, something we could definitely use. His decision making is questionable though...
I'm from Europe, so I know him from his tenure with Maccabi Tel Aviv, and he was a monster there, leading his team to the Euroleague Final in 2011.
I know the guy was cut by the Cavs but so was Danny Green and look at him now... and this guy looks really talented, I think we should give him a chance like a 10-day deal and see what he's got...
http://www.youtube.com/watch?v=Jb4e2qx35EE