I have a 9 year old Compaq Presario 1200 475 mHz, 6 GB drive, that I *just* maxed out to it's full 160MB of RAM (for $12. delivered).
It came with win98 on it, and I've loaded and run Win2000, and for several years now Debian linux. And I ran all of those on 96MB of RAM.
If you want to see...