Been researching for a while and am about to buy a 21.5 in imac. I plan on doing some home music recording. My question is, are the 4gb Ram And the standard processor ok or should i spring for the upgrades? Also ive decided to go with ableton live 8 suite over logic because it seems to be much easier to use. I plan on recording vocals guitars and synth stuff. What otheritems will i need i have mics and i plan on getting the akai mpk25 to use too. Any input or help would be greatly appreciated thanks.