Cheap ram is never a good idea . . .
You should only buy ram from Corsair, Kingston, PNY, OCZ, Crucial, Samsung, and Mushkin. If you buy any other brand, you are asking for trouble.
I personally like Kingston, I have used it in every machine I have ever built, and it has never failed me. PNY was also used in some of my old DOS rigs, and worked great. As for the others I listed, they are all reputable companies with long histories of satisfied customers.
Stay away from SpekTek.