I am interested in improving my cooling set-up. at present i am only using the retail HSF on my A64 3000+ but i can run at 2.55Ghz (1:1) at 1.5v. What cooling should I choose for air cooling and if not air cooling what other options do i have (water, peltier etc...). I don't want to burn a big hole in my pocket but i want something that is worth my money. Current temps are quite high ( 40 - 50 idle, 65 at full load). Many thanks!!!