Is this Memory suitable for Alu iMac 20" 2.0?

[k8xy4]

I just noticed the sale of 4 GB memory from FRY for $60 (after $30 rebate). Do you guys think the memory suitable for my Alu iMac?

Here is the link. Thanks a lot for the comments!!!

http://shop2.outpost.com/product/5284717

 

[timswim78]

I'd get this. It's $64 after rebate, with free shipping. Multiple reviewers say that it works well with Mac's.
http://www.newegg.com/Product/Product.aspx?Item=N82E16820211200