HP Laptop Upgrade

[bryceray1121]

I just bought a new laptop. It only came standard with 1 gb of ram and I would like to upgrade it to either 2 or 4gbs. I have found a couple on newegg but they seem to be to cheap. Is there something wrong with any of these? or are they good for the laptop i am using? Also, how much of a difference will i notice between 4gb and 2gb? i have windows vista home premium(32bit). But if i will notice some difference i may go with the 4gb just b/c it is so cheap.

Laptop
HP DV6605US

4GB
http://www.newegg.com/Product/Product.aspx?Item=N82E16820134578

2GB
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145157
http://www.newegg.com/Product/Product.aspx?Item=N82E16820148086
http://www.newegg.com/Product/Product.aspx?Item=N82E16820134555

 

[roadrunner197069]

You could go with the 4g but you will only be able to use 3 because of your OS.

 

[bryceray1121]

Is the 4gb i linked to a quality set of ram? and is it compatible with my hp?