What is "Really Nice and Cheap"? Hmm...
By really nice I mean tailored. Doesn't have to be extravagant or top notch, but should be at least the same quality that you would get if you went to quality store in the US. To be honest I don't shop for suits much so I probably would not know quality when it hit me in the face.
For cheap, let's say around $300. I don't know how reasonable that really is, but I know that my brother paid $250 a year and a half ago in Bahrain for a good quality suit.