Figuring that Delonte will miss games due to injury, Rondo could likely use a blow if they run a shortened season, and depth at PG is never bad anyway, I think signing a cheap but minutes-worthy backup PG is pretty important because depth could be a huge factor this season (if it happens). For stability's sake, It would be nice to lock someone up for more than one season at backup PG, especially for cheap cash.
So...who do you like, how much and how long, and why? These are my top 4 favs. Add others if you like.