Re: Building a PC
SATA is not much better than IDE - SATA simply provides a faster cable link (150MPBS over 133MPBS), and most hard drives don't actually get any where near that data transfer rate. The best bit about SATA is the much smaller cables, which is why its popular.
Some things you've forgotten:
Fans (depending on how many your case comes with)
Don't forget to try and budget for everything - check, for example, that fans come with fan screws, and if not budget them in.
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