I'm buying some rack servers and my main priority is keeping the cost low. It doesn't need to be powerful. I found a Dell server for about $500 and I would be okay with that, but I'd like to look at at least one other option.
Note: If you ask me a bunch of really specific questions, you're missing the point. Any amount of RAM, disk space, etc. is fine. I just need a rack server for a reasonable value.