Where Can You Buy Low-End Computers?

yamla asks: "These days, just about the slowest computer you can buy new runs at 600 Mhz. For a lot of people, this is overkill, a waste of money. Are there any online sites in Canada (or elsewhere) that specialise in selling new, low-end systems for bargain prices? Any other alternatives I haven't considered? I am thinking of two situations specifically here. I would like a firewall to place in front of my LAN. Now, I know there are products like FreeSco and the like that can run comfortably on a 486 with a floppy, but I'd rather run something like Storm Firewall and so I need a bit more power. I am also thinking of my mother who wants to upgrade her 200 Mhz system a little but needs neither the power nor the price that $600 Canadian would get her." Aside from surplus shops like Computer Surplus Outlet where can you find new or used older computers at decent prices?