Dear all, I bought my Aluminium iMac a few years back, it was the mid 2007 iMac (7,1). It is the 24 inch version with 2.4 Ghz Intel core 2 duo processor, 2 gb 667 Mhz DDR2 RAM and with a 320 GB 7200 rpm hard drive. It was fast at first but over time it slowed down. My programs easily become unresponsive, forcing me to force quite the program. This happens a lot in safari especially. (I have a super fast internet connection, and this never happen with my MBP). I would like to make it fast again. Now, I know SSD will help, but the process of upgrading myself is too difficult, (I have looked up the guide). The processor is not upgradable (at least for me). This leave me upgrading ram. This is quite easy, and not that expensive. But will upgrading to 4 GB ram speed up the iMac a little, and reduce the chance of application not responding? Other than hardware, is there something I should adjust and improve in the software? (I have snow leopard). I don't want to upgrade to a new iMac, because I have a new maxed out Macbook Pro 15, with SSD. I will use that to handle the most exhausting tasks. I want to take advantage of the iMac's big screen.