Re: Reinstalling Windows...HELP!
If you think you may mistakenly install windows to your back up drive, by all means disconnect it. When your os is installed just plug your E drive back in, nothing else to do.
Recommendations for reinstall: Boot from XP CD (set cd-rom to first boot in bios) delete partition, recreate partition, do full format, reinstall windows, once complete reset C: drive as first boot.
No you will not need to reinstall ram.
For best results let windows manage the page file, you do not have enough ram to disable it.
Unless you know what you're doing with regard to overclocking set your ram timings to those recommended by the manufacturer. I can't give more info because you do not state your bios type.