Hi I'm trying to build my first PC Desktop and I'm not exactly sure what it is that I should buy. I'm not looking to spend much more than $400 or so. I've been looking on newegg and so far my biggest problems come from trying to pick out the right processor, motherboard, and memory. Know I'm planning of dual booting XP pro and Ubuntu and I don't really do much hardcore core gaming so thats less important. Any help would be greatly appreciated.