So, my friend is selling his Macbook for pretty cheap, I think, which is running on 10.5.8 and has a Core 2 Duo P8600 @ 2.4GHz, 2GB of 1066MHz RAM and a Geforce 9400M. Seems out of date in terms of both hardware and software. But I will really only be using it for web browsing, music and maybe Java games, so i'm not sure what to think about this. I noticed that on 10.5.8 the latest Java is only 1.6.0_26 and I couldn't even get the Runescape client to run. If I updated to Snow Leopard or even Lion for the latest Java, how much would the general performance decrease/increase? I would appreciate any experience you guys could share with me, thanks!