One more thing...
Firstly, another vote for Combofix; it's free, it works in Safe Mode with Networking (I specify this option as it will check online for updates plus it will install the MS Recovery Console if the infected machine doesn't already have it), it can be run from a flash drive and it eradicates not only viruses and malware, but rootkits and bots as well. With that said, my 2 cents would be HD USB Enclosures. They range from about $3 to $20 on Amazon and can support almost any drive type and size. The process is simple: remove the infected HD from the shell, insert it into the enclosure and attach it to a healthy computer running Windows (preferably a clean test machine). From there, scan the drive with your best AV app, rinse and repeat if necessary and when complete, insert it back into the shell and reboot.
