I searched and couldnt find an answer so please dont kill me 
Seeing as my iMac has 2gb of RAM already, I was wondering, if it is 1 x 2gb, could I not just order another 1x2gb stick to make 4gb?
Or is it 2 x 1gb sticks in there?
Thanks
EDIT: Nevermind I found my anwer on apple website
Just to check, would this RAM be ok:
http://www.crucial.com/uk/store/mpartspecs.aspx?mtbpoid=3299593DA5CA7304
Seeing as my iMac has 2gb of RAM already, I was wondering, if it is 1 x 2gb, could I not just order another 1x2gb stick to make 4gb?
Or is it 2 x 1gb sticks in there?
Thanks
EDIT: Nevermind I found my anwer on apple website
Just to check, would this RAM be ok:
http://www.crucial.com/uk/store/mpartspecs.aspx?mtbpoid=3299593DA5CA7304