True, I got a 24" because that's all I wanted. You can also get a lower PSU than I did, I bought an 850W because I was planning to SLI in the next year or two. If this is your first build I tend to discourage folks from using water cooling, but a great CPU heatsink/fan that costs less than mine is the XIGMATEK Dark Knight II SD1283 (it is louder than mine, but still quieter than any water cooling solution).
J