Just need a little more insight. Looking to purchase my first Mac. I am debating between a PowerMac dual 2.0 or an iMac 2.1 20". Money is kind of an issue here but so is longevity of the machine. A refurbed iMac 2.1 (G5) is going for $1299 at the apple store, with upgrading the ram I would looking at about $1500 total. Power Mac dual 2.0's are going on ebay for about $1500 most of them having more around 1gb of ram already. In additon to the $1500 I would need a display as well which are going for around $600 total on ebay. So about a total of $2100+ I am looking for some extra input on which machine is the better deal. I understand the iMac is a great machine and has the built in screen but my worries are the longevity and lack of upgrade ability. Power Macs are also great but price with display is pretty killer. What are your thoughts on advantages of one over the other and is it worth the extra 600 or so for a display for a longer life span?