Quote: "Better to spend the most you can and keep it for 3-4 years than spending less and replacing it every year or so."
Not really... half of the value is gone in a year with a £120+ card. If the last half of the card's cost will last you another 2 years, then those are 2 years which are better value.
Think about it - it'll last you two thirds the time but it'll cost half as much.
Athlon64 2.7gHz->OC 3.9gHz, 31C, MSi 9500GT->OC 1gHz core/2gHz memory, 48C, 4Gb DDR2 667, 500Gb Seagate + 80Gb Maxtor + 40Gb Maxtor = 620Gb, XP Home
Air cooled, total cost £160