I recently had a run-in with something like windows.crack-cd.com and yes, it did try to download the assassin trojan (i guess it was firefox that asked if I wanted to install it, to which i said no). Looks like all sub-domains of crack-cd.com probably try to infect the machines that visit the site.

As for trojan detection/removal tools, I have used "The Cleaner" twice at work. It found what I wanted it to find, but I've not used it enough to say if it's a must buy.

Quick note: No, I was not looking for pirated copies of xp or stuff like that. I just installed xp-home using my sp2 slip-streamed unassisted disc onto a friend's computer. I forgot that I had my cd-key hard coded into the install and I needed to find a way to change the key to the correct one (at the time I had forgotten about the call-in activation method, which worked when I changed the key).