Hello - we have a iMac 2.4ghz Intel Core 2 Duo 24 inch display 1gm Ram that we use mostly for browsing the web, flash web games, office and iphoto. We were contemplating upgrading it to a 2010 or 2011 27 inch model or with our use would we be better off just upgrading our current machine to 4gb of Ram? Obviously this would be cheaper. We also have a 2010 Macbook Air and iPad 2 that we use more than the iMac. Still nice to have that big 24 inch screen though! Thanks for the help.