After 11 years, my G5 iMac appears to have died. Consequently I shall be in the market for a replacement. I DO NOT want a nearly new - can't afford it - and am looking for the best of the Intel generation of iMacs. I hate the aluminium, glass screen and would much prefer a white model but accept that buying one of these may be ill-advised, although I would welcome the experience of anyone who may have bought one recently. So people, what year/model should I definitely avoid? Thanks, good people.