Updating mid 2011 imac
Hi
I have the mid 2011 iMac with the i5 2.5 processor. Im looking to get more memory in it to update it a little. It currently has the standard 4gb 2 slots being used. I see the new iMac's are coming with 8gb, what do people think i should upgrade to? Also would i buy 2x2gb or 1 x 4gb etc. Its just being used for light tasks really but keen to keep it upto date being an older model now.
thanks
iMac, Mac OS X (10.7.2)