Extra memory

secretsoflife, who is much wiser in these things than I, suggested that instead of buying Apple's memory, I buy this:
http://canadacomputers.com/index.php?do=ShowProduct&cmd=pd&pid=014086&cid=RAM.187

Or if I want the same stuff Apple uses, buy this (I think this is the right stuff):
http://canadacomputers.com/index.php?do=ShowProduct&cmd=pd&pid=009302&cid=RAM.187

So, would it be even remotely worth the extra cash to get the Kingston ValueRAM, rather than the Crucial Rendition? It's $47 vs. $54

Is there a happy medium, alternatively? Edit: not sure a happy medium is worthwhile considering that the price differential is so small now that secretsoflife has corrected me on which Kingston ValueRAM I should "go" for.

Thanks in advance for any wisdom/advice!