All the people recomending devices to put in front of the server need to realize this is not a server resource issue. During the last attack that lasted almost an hour, I watched the service utilization sit around 2-5% CPU Usage (I could still get in because it was connected to our other server via a cross-connect on both server's secondary nic cards). The problem is bandwidth saturation, plain and simple. In order to avoid it, we need a bigger pipe, or we need rate limiting on the data center's side. Both of these are being looked into. We're upgrading our connection pipe, and I don't want to get into much details of what we're getting on the public forums, but even after that if the attacker has a big enough botnet, he can potentially still max it out, however the larger the attack, the more notice the data center takes and will work to track down.
So there are many options being considered, and again I don't want to discuss everything we plan to impliment for defensive capabilities on the public forums as to not give the attacker any more ways to circumvent them.
As far as donations go, yes they are being put to use:
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