I don't know of any current problem that cannot be prevented by taking some easy steps
As well, there is no reason why you would have to send your computer in for a patch to overcome a virus: Any such patch will deal with the software within the computer, which can easily be installed by you through downloading it through the internet - any such patches (and there are many) are available at
http://windowsupdate.microsoft.com
The only reason you MIGHT have to send in your computer is if you have already been effected by a virus and need a new motherboard, etc.