hi, i just saw on my local craigslist an ad for a powermac g5 1.8ghz single core for $125 obo. i was wondering if it is worth the price or lower? before people comment on how old and slow it is. primary use is to compliment my new desk for school (collection) and just another mac to use when I'm not using my macbook pro. i.e., safari, iTunes and office use only. perhaps burning cds and dvds but thats all. so what do you guys think?