Looking for a testserver

[Rovanion]

As may hinted by the topic, I'm looking for a place that can keep my Team Fortress 2 map Two Towers up in around four days. One day will also do without no doubt but I will probably get the most out of the beta testing if it's up for a longer period of time. All to make the map as good as possible.
And I'm asking for help because I cannot get a dedicated server working within my home network, no matter how hard I've tried.

This is going to be the third beta test this map has gone trough, but hopefully it will be the first public one. I'm hoping of releasing the map soon after the beta test depending on the results of the test, always open for criticism.

So I'm hoping for an awnser here. Does anyone own a Source server, maybe your clan got one? Or perhaps you got a computer and an internet connection to spare for a couple of days?