Looks like a clone/unbranded DJI 550 frame from HK is avilable for $17.99. Seems like a good price. I just ordered one. Hope the quality is good. Will update everyone, when I get it.
BIG NOTE: It looks like this frame does not have the PDB(Power Distribution Board) built in. I actually like this better, since that means, holes can be drilled without worrying about a short.
UPDATE: June `14th, 2012
The frame has arrive here's some quick pictures: