Does she download mp3's?
If so, 160 could be filled up in no time. So allow slightly more storage space is recommended especially for a system that she will be keeping for awhile.
Everything else you cancut down on, but I wouldn't go down on the hard drive too much.
No music, movies or games at all. It will be a PC for using MS Office and the internet on. I would imagine 10GB will last her ages.
She's set on the idea of 4GB RAM when I told her when my PC had that running on XP everything happened pretty much instantly. CPU isn't too expensive anyway, maybe I could cut down to a lower one? As for mobo I've already cut that, no gfx card, no sound card, case I'd like to use as I've worked with it before, same with the DVD/RW drive. Power supply I know nothing about and just picked the second cheapest one?