One of my clients outsources all large projects to a company in Ukraine (The HQ is there, but the developers are in other parts of Europe). The time zone isn't too bad, their English/communication is nearly perfect, and it's at a fraction of the cost here in the US.
A large year-long project that I was the tech lead on that involved moving our legacy systems to a brand-new system (this includes all of the coding, etc) cost the company around $90,000. There were 10 devs on staff.