I would like some help/advice. I have just been gifted(from my son) his old 6yrs G4 17" Powerbook - spec 1.3Ghz 512MB/80 non intel processor, it works perfectly well I think, but the battery A1039 doe not retain its charge approx 1 hr use. I have looked at the cost of a replacement battery approx £30 1yr warranty £55 for 3 yrs warranty, is the extra cost worth it due to the age of the computer. On a wider front the value of the computer I guess is maybe about £100, HP are currently offering a part exchange on certain of their PC laptops of between £100-150 against machines costing about £450 ie net cost of £300ish, What are people's thoughts about just replacing the battery or replacing the old G4 powerbook for a new more powerful HP PC laptop with either i3/i5 intel or AMD quad processor