motherboard for budget but great over clocker is the epox ep-8rda+ has sound and nic onboard . get the retail xp 2500 and , if you want to go with a low prices hsf get the
GlacialTech Igloo 2500 Pro or the vantec aeroflow . both are really quiet and highly rated .
here is a nice review of 65 hsf combo's and the glacial tech hsf combo's are rated in the top 5 . as far a cd burner i would get one local you can always find one with a rebate so the after rebate price is 20$ or less . as far as the decoded i am no help there . but i did see a neat product at the computer show , fair geek show what ever you call it , they were saying it was tivo without the subcription . was a external box you hooked up to cable and let you record onto your pc from cable or dvd . was really neat . was 60$ i almost got one .