Just thought I would throw the configuration I need for a dedicated server and see what suggestions/offers I get.
Any Dual Core/Quad Core processor (Quad preferred)
The configuration above can be tweaked to meet the budget. Ideally, I would want to spend $40/month or so on this.
All the requirements seem reasonable except the price. Your budget needs to be 2x as much, if not 3x as much. $40 / mo might be enough for an atom with all the other requirements you have, so if an Atom is good enough, you may be able to find some offers that meet your needs.
Have you considered a VPS? Given your budget, I think that you would be much better off with one
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