Choosing Ram is near impossible. Someone help ^.^ please.

[theredmunkey]

I want to upgrade my PCs Ram. I have decided to use Corsair, mainly because I already have one stick of corsair in my PC right now. It is an XMS-PC2700 I believe (512mb). Okay... so I thought I would just go ahead and get another 512mb stick of XMS-PC2700 over at zipzoomfly.com BUT!!! somehow the XMS-PC3200 512mb stick is almost $30 cheaper... Does that make any sense? Point is... am I better off getting the slower ram because its the same as the ram I have now and ram works well in identical pairs? Or should I get the cheap (and better... right?) ram?

OR!!!

should I just get a stick like this one :http://www.pricegrabber.com/rating_getprodrev.php/product_id=2462892/id_type=M
I mean whats the difference between the 56million different types of Corsair ram anyway?

Please someone bless me with a bit of enlightenment. Thanks bunches in advance.

[PCguy]