Is this good Ram?

Yes

 

OWC (MacSales) is a highly respected Mac upgrade seller. Also check out Data Memory Systems

When buying RAM, choose a reputable dealer who tests and guarantees compatibility with your model Mac, offers a lifetime warranty, and a no charge (no restocking, no shipping) return if the RAM doesn't work.

 

CanadaRAM have you made a stock reply yet? You might look into it if you haven't.

 

Actually, it is in the MR Guide - Buying RAM

But it's more fun to type it out... So many newbies, so little time

MacNewbie03 - welcome to MR. You'll find many answers to common questions under the Guides tab at the top of this window.

The second half of your question is addressed in Understanding Intel Mac RAM

 

I forgot about the Guides even if I'm one that posts a link to it as a response as well.

 

If you're going to get 4GB, just buy set of two: http://eshop.macsales.com/item/Other World Computing/53IM2DDR4GBK/

Savesyou whopping $0.50